Women who measure their basal temperature, not only without tests, can determine the time of onset of ovulation in their cycle, but also earlier than others to guess that the conception took place. And the BT schedule will help them in this, which in the "pregnant" cycle is strikingly different from other schedules. What should be the basal temperature during pregnancy at the most early dates to a delay, this article will tell.

BT - what is it and how to measure it?

The basal temperature, by definition, existing in medicine, is the lowest human body temperature, which can only be recorded at the time of rest. When we are active and mobile, the internal temperature of our body always rises. And in women, the level of the base temperature still depends not only on activity, but also on the day of the cycle, because on different days the cyclical activity of the female body is determined by completely different hormones.

It has long been noticed that during ovulation in women there is a jump in basal temperature. This is the basis for the symptothermal method of recognizing fertility, which allows women to see exactly when they have the release of a mature egg from the follicle, which means the highest probability of conception.

Ovulation Calculator

Cycle duration

Menstruation

• Menstruation
• Ovulation
• High probability of conception

Indicate the first day of your last period

Ovulation occurs 14 days before the start of the menstrual cycle (with a 28-day cycle - on the 14th day). Deviation from the average is often, so the calculation is approximate.

Also, along with the calendar method, you can measure basal temperature, examine cervical mucus, use special tests or mini microscopes, take tests for FSH, LH, estrogen and progesterone.

Unambiguously establish the day of ovulation can be done by folliculometry (ultrasound).

Sources:

1. Losos, Jonathan B .; Raven, Peter H .; Johnson, George B .; Singer, Susan R. Biology. New York: McGraw-Hill. pp. 1207-1209.
2. Campbell N. A., Reece J. B., Urry L. A. e. a. Biology. 9th ed. - Benjamin Cummings, 2011 .-- p. 1263
3. Tkachenko B.I., Brin V.B., Zakharov Yu.M., Nedospasov V.O., Pyatin V.F. Human physiology. Compendium / Ed. B.I. Tkachenko. - M .: GEOTAR-Media, 2009 .-- 496 p.
4. https://ru.wikipedia.org/wiki/Ovulation

In the first half of the cycle, estrogen and FSH “rule” the woman’s body. The action of these hormones leads to the maturation of the follicle. A surge of LH one day before ovulation, followed by a decrease in estrogen, leads to a characteristic jump in internal temperature. After ovulation, a corpus luteum forms progesterone at the site of the follicle. And under the influence of this hormone, the basal temperature rises and remains so for almost the entire second half of the cycle.

If pregnancy has not occurred, the corpus luteum dies 10-12 days after its formation, the concentration of progesterone decreases, the basal temperature decreases and menstruation begins. If conception still happened, then after successful implantation of the embryo into the uterine wall, the production of hCG hormone begins, which prevents the corpus luteum from ceasing to exist and function, progesterone remains high, basal temperature does not decrease.

That is why the method of measuring BT is considered informative not only for determining ovulation, but also for the earliest diagnosis of pregnancy, as well as various gynecological pathologies and endocrine disorders.

To determine pregnancy from a basal temperature chart, it is very important to take the measurement correctly. Any errors in this process will lead to incorrect indicators of the true temperature, the woman will be misled. Therefore, when planning conception, it is necessary to learn important rules that will help to obtain accurate data. Denote these rules.

It is impossible to measure the basal temperature under the arm.It is necessary to fix it in those parts of the body that have direct proximity to the cavities, communicate with them. This is the mouth, vagina, rectum. Having chosen one part of the body, always take measurements only in it, do not change the location of the thermometer.

Choose a good thermometer that works properly. Better is mercury, since mercury devices are more accurate than electronic ones. For measurements in the oral cavity, a special thermometer is required. In the rectum and vagina, you can use the most ordinary thermometer.

It is necessary to measure BT in the morning at the same time every day.In the evening and afternoon, it is always elevated, because we are active. And in the mornings after awakening, for some time the body still adapts to wakefulness and provides the thermometer with the most accurate readings of the temperature of the internal organs.

Do not make movements, do not get out of bed. Having woken up, immediately proceed to measurement, lying alone. In the evening, put the thermometer at arm's length, shake it in advance.

Thermometer injected at 2-3 centimeters for 5-7 minutes.

The best time to measure is considered to be from 5 to 7 in the morning, but take into account the personal daily routine, because before measuring a woman should spend at least 6 hours in a dream without getting up anywhere.

The increase in temperature can be affected by severe stress, a cold or a viral disease, any inflammation, fatigue, travel, sexual intercourse that took place the night before, alcohol drunk the day before. Under such circumstances, BT inevitably rises, so a woman may misinterpret her schedule at the end of the cycle.

The temperature is entered into the schedule, the measurements do not stop even during the next menstruation. You can download the graph on the Internet or draw it yourself - this is not so important.

“Pregnant schedule” - what does it look like?

Of course, the BT schedule will only suggest a possible pregnancy, but will not be able to accurately answer the question of whether the conception took place or not. Although sometimes such a clue women planning pregnancy are very happy. Take a close look at the cycle schedule. To talk about the likelihood of pregnancy, it is important to see the day of ovulation on it, to be sure that the release of the egg, as a prerequisite for conception, took place.

Most often, this day falls in the middle of the cycle, before it there is a decrease in temperature, and then it immediately takes off. This "peak" visually divides your cycle into two phases and looks like a beak of a bird with spread wings. Before the beak, the temperature was in the range of 36.2-36.9 degrees, on the day of ovulation - above 37 degrees.

The second half of the cycle takes place at elevated temperatures, but this is not a sign of pregnancy, but just a sure sign of the action of progesterone. It is developed in all women, regardless of whether the conception has come or not. During the first week after ovulation, on average, your temperature during pregnancy and without it will be 0.4-0.6 degrees higher than in the first phase.

7-9 days after ovulation, implantation of the embryo occurs, if conception was. The physiological and biological meaning of what is happening is to attach the fetal egg to the inner layer of the uterus - the endometrium. On the day of implantation, a fairly common curious phenomenon is often observed - implantation subsidence of basal temperature. It may decline slightly and rise again the next day. But such a decline is not necessary at all. It depends on the personal level of progesterone in a woman’s blood.

If the implantation was successful, under the influence of hCG, the corpus luteum does not regress, but continues to regularly supply the female body with shock doses of progesterone, so the basal temperature remains high. The pregnant woman will not have a decrease 2-3 days before the menstruation, which is observed by non-pregnant women in the regression phase of the corpus luteum - all days until the menstruation delay, BT will remain elevated (above 37 degrees).

It is this sign that should prompt the attentive woman that the "interesting situation" is very likely.

Other chart options - reasons

If in the second half of your cycle thermometry shows an increase in BT to 38 degrees and above, do not rush to rejoice, as. this does not, alas, say about pregnancy. This means that a woman in the body has a serious and severe inflammatory process, in connection with which you need to consult a doctor as soon as possible for examination. Most often, this temperature accompanies gynecological problems of an inflammatory and infectious nature.

Therefore, pay attention to discharge, pain. If the discharge is atypical, there is pain, the health leaves much to be desired, you need to go to the doctor.A sharp jump in temperature to 38 degrees after 6-8 days after ovulation can indicate an ectopic pregnancy.

Reduced thermometry in the second half of the cycle (36.5 - 36.9 degrees) suggests that the corpus luteum does not produce enough progesterone. In this case, even a pregnancy that has begun can suddenly abort at any time, since progesterone deficiency threatens a miscarriage or a frozen pregnancy at an early stage. It should also be sure to consult a doctor.

In most cases, the situation can be corrected by starting to take progesterone medications as prescribed by the doctor.

According to the results of measurements, a woman could get a schedule at which there is a temperature increase in the second half of the cycle, but very insignificant - by 0.2-0.3 degrees, no more. In this case, it is worth suspecting endocrine disorders, often age-related. After all, after 30 years, the production of sex hormones is significantly reduced. It is difficult to conceive a baby in such cycles, and if this succeeds, then pregnancy is often accompanied by a threat at the earliest possible date.

A monotonous graph, in which, it is sometimes impossible to clearly distinguish changes in BT up or down, speaks of an anovulatory cycle. There was no ovulation in it, and therefore you should not expect pregnancy - in the absence of a mature egg, conception is impossible. A chaotic graph with large peaks and dips, a “royal” range of the curve indicates that gross errors were made during the measurement, so the graph itself does not reflect reality. And also such graphs are a sign of severe hormonal disorders, most often with them the onset of pregnancy is not possible.

The graph with a high temperature in the first half of the cycle does not even require further analysis of the increase or decrease, because it speaks of the initial violation of the hormonal background during follicular maturation. Such schedules do not promise normal ovulation, usually such cycles when the rectal or vaginal temperature after menstruation is above 37 degrees are anovulatory, in which conception is impossible.

Accuracy and error

How accurate are the BT schedules, the answer is not as simple as it seems. If a woman does everything correctly, complies with all measurement rules, then the accuracy will be quite high. But this method is not suitable for determining pregnancy.

The most that can be done after 11-13 days after ovulation the temperature does not drop, so wait a few more days and buy a pregnancy test - after a delay, its accuracy is quite high. In addition, a couple of days before the delay in menstruation, you can do a blood test for hCG - during pregnancy, the level of chorionic gonadotropin will already exceed the norm.

Body temperature in early diagnosis pregnancy does not play a big role at all. But it has long been noticed that after implantation (in the last week before the delay), pregnant women experience temperature rises of up to 37 degrees and above, especially in the afternoon and in the evenings. It seems that this is a cold, but the next morning the body temperature returns to normal.

Charts for other women with examples and explanations that ladies share on social networks and on thematic forums on the Internet are of great help to those planning pregnancy. According to reviews BT is not a panacea and a way to diagnose a pregnant condition, but a pleasant and useful hint.The longer a woman practices measurements and builds charts, the better she begins to understand her body, easily notices an unusual schedule, which ultimately turns out to be “special”, ending not with a new page in the female calendar, but with the first page in the future mother’s calendar.

For more information about measuring basal temperature in early pregnancy, see the next video.

The concept of basal temperature (BT) is known, probably, to every woman who planned a pregnancy. Monitoring this indicator makes it possible not only to know the exact day of ovulation, but also to diagnose an “interesting situation” even before the onset of menstruation delay.

What should a graph of basal temperature look like in the presence of pregnancy - an example

As you know, it is customary to call basal the lowest temperature that the body normally reaches. This occurs during a long (at least 4-6 hours) sleep, usually at night. It is measured in the mouth, vagina or rectally. On different days and periods of the menstrual cycle, this indicator changes. For example, before ovulation, it rises, and at the beginning of a new cycle it decreases. To see the dynamics, you should measure it at the same time. They recommend doing this immediately after waking up, staying in bed (movement increases the temperature). You can use a conventional thermometer, but you need to hold it for at least 7 minutes. Data must immediately be entered into the schedule. Measurements are carried out daily, including on the days of menstruation. The data is affected not only by hormones, but also by physical activity, diseases, medication or alcohol intake, and a change in diet.

To get the right schedule, which will be as informative as possible, which means it is useful in planning a child, you need to track this indicator for at least three to six months in a row.

In the early days of the menstrual cycle, in an ordinary healthy woman of reproductive age, the basal temperature remains in the range of 36.4-36.7 degrees. Then it gradually decreases slightly to 36.3. At this temperature, the egg matures in the woman’s body. From about 14 days (the beginning of the second phase of the cycle), the BT begins to rise again. It grows on average half a degree. On the day of ovulation, this figure rises and reaches approximately 37 degrees. Increased BT lasts approximately 12 days. The hormone progesterone, which is intensely generated by the female body at this time, is responsible for such hyperthermia. If there was no conception, then the amount of progesterone decreases. Accordingly, the temperature begins to decrease. Before menstruation, it reaches the level of the first days of the cycle - 36.4-36.7 degrees. Such it persists during the period of menstruation and several days after them. This is an approximate two-phase graph of the basal temperature of a woman with a 28-day cycle who has no health problems. There may be some slight deviations associated with the individual characteristics of the body.

If conception has occurred, then BT is delayed at the level of 37-37.4 degrees. This is how you can guess about the onset of pregnancy even before the manifestation of the delay. A week after the moment of ovulation, the temperature may temporarily slightly decrease when the egg is attached to the endometrium. After that it will rise again. This indicator stays at about 37 degrees in the early stages of pregnancy. After 20 weeks, a slight decrease is possible.

Graph of basal temperature during twin pregnancy

According to medical data, multiple pregnancies are extremely rare, but it is still possible to diagnose according to a schedule of basal temperature. In some women who become pregnant with twins, on the graph you can find the so-called “third phase”, that is, another temperature jump, similar to that that happens with ovulation. It occurs on a 20-29 day cycle. Experts attribute this phenomenon to the fact that such women have significantly higher levels of progesterone and the hCG hormone (chorionic gonadotropin, which is generated by the chorion tissue on the 7-8th day after fertilization of the egg). True, such an oscillation is not a guarantee of multiple pregnancy, but only indicates its greater likelihood.

What does a graph of basal temperature look like with an ectopic, with a dead pregnancy

Many women who have used BT monitoring to plan pregnancy continue to follow this important indicator even after conception. There is a theory that deciphering relevant data helps to recognize an ectopic or missed pregnancy.

As already mentioned perfect schedule basal temperature after pregnancy with normal gestation displays the preservation of the named indicator in the range from 37 to 37.4 degrees. That should be almost all nine months. If after a short time it decreases, for example, to 36.8, then this may be a signal of premature termination of pregnancy. The temperature drops because the female body reduces the production of the hormone progesterone. It is worth mentioning that there is a high probability that the embryo's fading does not affect the basal temperature graph in any way. For some time, it may remain unknown to a woman that pregnancy does not develop anymore, because fading (especially at the very beginning) is not always accompanied by obvious symptoms, such as bleeding. An accurate diagnosis can only be made by a doctor.

It often happens that the schedule is normal, and the pregnancy is an ectopic. Therefore, this criterion alone cannot be used to make a diagnosis. If, based on data from the BT schedule or changes in her well-being, a woman thinks she is pregnant, even with a negative result of the pharmacy test, then it is better to contact your doctor and pass the necessary tests. So you can confirm your guesses and exclude possible pathologies.

Especially for - Ksenia Boyko

Just 15 years ago, the measurement of BT was considered one of the main diagnostic methods for assessing female reproductive health. After all, the basal temperature of a non-pregnant woman is fundamentally different from the girl’s BT “in position”. A “healthy” temperature chart is not at all like a girl with problems “on the female side”.

Now this method has given way to other, more modern and accurate diagnostic methods. Gynecologists prefer to prescribe ultrasound and hormone tests to patients. However, the BT method can still tell a lot to both the girl herself and her doctor.

How to measure BT

• unsuccessful attempts to conceive a child over a long period of time;
• suspected hormonal imbalance and a change in the menstrual cycle;
• probable infertility of one of the partners;
• calculation using the schedule of the most favorable days for conception when ovulation occurs (the exit of an egg, ready for fertilization, from a mature follicle);
• control over the processes occurring in the body of a woman;
• diagnosis of anovulatory cycles.

BT is measured in the morning, after a full night's rest (when a healthy sleep lasted at least 6-7 hours), in a state of complete rest and not getting out of bed. As a rule, the most accurate results can be obtained by measuring the basal temperature with an ordinary mercury thermometer in the rectal passage, but experts also do not deny the information content of measurements obtained by measuring indicators in the oral cavity or vagina.

Based on the results of which a special schedule is compiled. A competent assessment of the basal temperature schedule can only be given by a qualified specialist. However, the girl herself can understand a lot.

The phases of the cycle on the graph

The normal monthly cycle of a woman who is not pregnant consists of two main periods: follicular and luteal phase. In the first phase of the cycle, which begins with the onset of menstruation, estrogen hormones are actively synthesized in the woman's body, which positively affect the maturation of the egg and the proliferation of the uterine endothelium. This period is characterized by stably low BT indices on the graphs, therefore it is called hypothermic.

About the middle of the monthly cycle, the egg matures in the follicle. Her exit from the ovary or ovulation is accompanied by a change in the hormonal background of the woman, after which progesterone, the main hormone of pregnancy, begins to be produced normally. This biologically active substance, affecting the centers of thermoregulation in the brain, provokes an increase in temperature indicators by about 0.4-0.6 degrees. If fertilization does not occur, progesterone levels begin to decrease, menstruation begins and the body enters the follicular phase of the cycle again.

Temperature rate

Basal temperature in the absence of pregnancy has its own characteristic features, which are clearly visible on correctly drawn up graphs of the period without conception. The norm is when the temperature in the first phase ranges from 36.3 to 36.6, and in the second it rises by about 0.4-0.6 and is already 36.9-37.1 degrees and above.

So, what should be the basal temperature in non-pregnant women? The following features are characteristic of a non-pregnant basal temperature chart:

• decrease in BT with the onset of menstruation to the level of 36.3-36.5;
• stable basal temperature throughout the follicular phase;
• an increase in BT indicators about two weeks before the expected monthly;
• the presence of ovulation retraction or a decrease in the level of basal temperature by 0.1 before the release of the sex gamete from the ovary;
• increase in indicators during ovulation to 36.9-37.1;
• the temperature difference between the two phases should not exceed 0.4-0.5;
• a decrease in temperature to 36.7-36.8 one to two days before the onset of menstruation.

Naturally, the graph of basal temperature in the absence of pregnancy differs in many respects from the curves obtained as a result of measuring BT in women who are already carrying a baby.

The main feature of the charts without pregnancy is a decrease in the temperature level in the last few days of the cycle, that is, a decrease in progesterone activity. In addition, the basal temperature, if there is no pregnancy (in contrast to the indicators of women expecting a baby), has a two-level appearance, sinking in the middle of the cycle and a gradual rise in the temperature curve in its second period.

Chart of a non-pregnant woman

Pregnancy Chart

Deviations from the norm

In every woman, normally, about twice a year, monthly cycles occur without the release of a mature egg, called anovulatory. On such graphs, the line is constantly on the same level, without falling and sharp rises. Anovulatory cycles are characterized by such features:

• the absence on the graphs of the difference in basal temperature in the middle of the cycle. The situation, when, is a confirmation of the absence of ovulation;
• in the second phase, an increase in the temperature level is not recorded, since pregnancy that synthesizes progesterone is not formed.

Charts of basal temperature will allow to suspect some diseases of the female genital area. Temperature jumps above 37.0 in the first phase of the cycle indicate the development of an inflammatory process in the ovaries or uterus. And with a lack of hormones, its relative increase in the first period of the cycle and a decrease in the second will be recorded.

However, it is important to remember that any deviations from the norm on the chart are just an excuse to contact a specialist. In itself, temperature measurement is only an auxiliary and not the main diagnostic method. Perhaps your fears are completely groundless. Laboratory tests, ultrasound and other tests that your doctor will prescribe are much more reliable.

The article describes what a low basal temperature is. How to understand if this is normal or should consult a specialist. Examples of pregnant and non-pregnant schedules with low BT in the first and second phase are given. Is basal temperature below 37 really bad? .. Interesting? Then read on.

What does low basal temperature mean in the first and second phase of the cycle?

If, say, the basal temperature is below 37 in the second phase of the cycle - this does not mean at all, a lack of progesterone and a potential bearing problem. It matters not the absolute indicator - 37 °, but the relative. What is the difference in average temperatures between the two phases.

Example(!) If the average before ovulation is 36.4 °, after it is 36.8 °, the difference is 0.4 °. This means that everything is in order with the hormonal background and there are no problems. If the values \u200b\u200bare: 36.6 ° and 36.8 °, a difference of 0.2 ° indicates a hormonal disorder. In the second case, we can talk about low BT in the second phase.

In the first phase there is no low basal temperature. And each woman has her own individual indicator, but not higher than 37 °.

Causes of low basal temperature in the second phase

1. Progesterone deficiency. It is determined by passing the analysis in the corpus luteum phase (7 days after ovulation);
2. . Defined by.
3. Incorrect measurements of BT (change of thermometer, place of measurement, time, illness in phase I, etc.);
4. Other gynecological or endocrine diseases.

Note(!) Specialist consultation and examinations are required only when the situation with low BT in phase II is repeated for several cycles in a row. Single, non-repeating failures on the schedule are possible and do not pose any threat to potential bearing.

Pregnancy charts with low basal temperature

Let me remind you that you can talk about low BT if the schedules were conducted for three or more cycles and the average temperature of the follicular phase is known exactly. And the difference between the two phases is 2.5 ° or less.

Normal pregnancy is possible with indicators up to 37 ° and a relative difference of 3 ° and above. This is not considered a problem, but simply a feature of the body.

Important (!) If with a confirmed pregnancy, a short-term drop in BT is possible. Do not panic and immediately start taking progesterone-containing drugs. They are appointed only by a specialist. Observe yourself and make the right decision.!

A healthy woman resorts to measurements most often because of the desire to conceive a child. BT during pregnancy is significantly different from the indications that are observed in other periods of life. If there are relevant indications of BT, which are inherent in pregnancy, then we can talk about a successful conception. BT becomes interesting in every period of gestation - from 1 to 40 weeks.

Basal temperature data is taken in three places:

1. In the mouth.
2. In the rectum (rectally).
3. Into the vagina.

The most accurate readings are temperatures measured in the rectum. They are lowered in the first phase, that is, up to 37 ° C. They fluctuate from 36.2 to 36.9 degrees, which is individual. The most important thing is that the readings of BT in the second phase (the ovum enters the fallopian tubes, that is, after ovulation) are 0.4 ° C at least higher than the previous ones. This “morning” temperature persists until the onset of menstruation:

• For 1-2 days before menstruation, BT falls.
• On the day of menstruation rises.

Basal temperature is strictly controlled by the level of hormones produced by the body. During pregnancy in the second phase, the temperature gradually rises or is already high up to the delay of menstruation and even more. This indicates a high level of progesterone and estrogen, which regulate the process of maintaining pregnancy.

From basal temperature, you can calculate the days favorable for conception, as well as periods when you can not worry about the safety of sex. It is also regulated by hormone levels. Basal temperature also helps to identify various abnormalities in reproductive function. For example, at 3 and 4 weeks of pregnancy (according to obstetric indications), the temperature should be more than 37 ° C.

If there is a delay, but the basal indicator falls, then this indicates a negative process of conception (pregnancy is not observed).

How to measure?

Basal temperature is an easily changing thing. A woman must follow the rules of her measurement in order to get the right data. These rules are the same for all women: both for pregnant and non-pregnant women ..

You should use one thermometer, which can be mercury (preferably) or digital. It is inserted into the rectum by 2-3 cm and held for 5-7 minutes. Measurements are taken strictly at the same time (take-off can be up to 30-60 minutes maximum). Everything happens in the morning, when a woman has just woken up and has not yet got out of bed.

Other rules for scheduling BT are:

• Measurements are taken for 4 consecutive menstrual cycles for a more accurate picture.
• Measurements are taken after waking up from sleep, which should last at least 5 hours. In the morning, a woman should, without getting out of bed and without stretching, take a thermometer and measure the temperature.
• While the temperature is being measured, you should lie still.
• All data is recorded in a notebook where the date and exact data about BT are indicated. At the same time, notes are written about what distorted the testimony of BT, for example, alcohol consumption or medicines on the eve.

Basal temperature is not taken in the daytime. Only in the morning is it reliable. With activity and movement, body temperature rises, which distorts the readings.

BT distortion can be affected by:

1. Alcohol consumption.
2. Sexual contact the day before.
3. Diseases in which the overall body temperature rises.

During pregnancy, it should be borne in mind that BT is within normal limits for 2 weeks after conception. Then there are hormonal changes that distort the data. At week 9, BT will not be of much interest than at week 1 or 2. However, if the doctor has prescribed it to be measured, then his recommendations should be followed.

Early diagnosis

In pregnancy, BT remains high right up to the delay and longer. Diagnostics on early stages produced after conception in the first weeks. The temperature rises to 37 and higher (by 0.4-0.5 degrees) and on the day of delay it will rise by another 0.2-0.3. However, everything is individual: in some women, the temperature may not increase more than 37 ° C.

The BT schedule during the first week will sometimes behave strangely. For example, on the 6th day, basal temperature may drop, which does not mean pathologies. Sometimes this happens after ovulation on days 7-10, which indicates implantation depression, which may be accompanied by bleeding.

On the next or 2 day after the fall, the temperature rises again to a high point. Such differences in the second phase may indicate fertilization.

Other signs of pregnancy may be the following cases (if in the second phase there was no short-term jump in temperature):

• Increased BT is observed for 3 days and longer than in previous cycles.
• High BT lasts at least 18 days - a sure indicator of pregnancy.
• A third jump in temperature is observed, dividing the graph into 3 phases.

Low BT during gestation

You should pay attention to what is the basal temperature in the event of pregnancy. Its normal indicator is 37.1-37.4 ° C. However, lower temperatures can sometimes be observed. Low BT is not an alarming sign during gestation, but attention should be paid to it.

Gynecologists often advise measuring BT during the entire first trimester. This occurs in cases where a woman has previously had miscarriages, a threat of termination or a miscarriage. A low temperature in the first trimester may indicate:

• Progesterone deficiency, which regulates normal gestation.
• The threat of spontaneous abortion.
• Fetal freezing.

A sharp drop in the basal mark below 37 degrees may indicate insufficient production of progesterone. In this case, a visit to a doctor should be mandatory, especially if other warning signs arise:

1. Pain in the lower abdomen.
2. Increased uterine tone.
3. Bleeding.

Do not panic that BT has dropped to 36.9 ° C if there are no discomfort, abdominal pain, or bleeding. This is not considered normal, however, individual characteristics of the female body can play a role here. A doctor should be examined so as not to worry about low BT.

If BT drops to 36 ° C, this is an abnormal sign. Fetus or spontaneous abortion may be noted here. In any case, consult a doctor urgently.

It is also necessary to pay a visit to the gynecologist if BT drops to 36.8 and below degrees and lasts a long time. Here you may need to get tests for hormone levels. However, if low BT appeared only once, then you should not worry. This could be an error in the measurements or a temporary change in the state of the female body.

What does increased BT mean?

High BT should also attract attention. What does its increased performance mean? If 38 ° C is noted for a long time, then you should use medical help, since we can talk about inflammatory processes in the body or ectopic pregnancy (BT may be normal in this case).

Slightly elevated BT (37.7-38 ° C) is a normal phenomenon, which may indicate individual characteristics of the body.

We should not forget about the various factors that affect the measurement of BT. If a woman takes medicine, leads a sexual life, moves after awakening, then the indicators will be different, which is natural.

A slightly elevated BT is quite normal, if at the same time a woman feels good and nothing bothers her, and the level of hormones remains normal.

Internal BT at various stages of pregnancy

It should consider changes in internal BT at various stages of pregnancy:

• 3rd week corresponds to the 1st embryonic week. At this stage, BT shows 37-37.5-37.7 degrees and slightly higher. A mark below 37 ° C indicates abnormalities and the threat of abortion.
• The 4th week is marked by BT indices in the range of 37.1-37.3 ° С, the maximum limit is 38 ° С. Higher rates indicate infectious or inflammatory processes.
• The 5th week should be stable between 37.1-37.7 degrees. If it repeatedly rises or falls, then you should pay attention to other signs: pulling pains, hardening of the abdomen, softening of the mammary glands, etc.
• The 6th week retains its previous indicators: 37.1-37.7 ° С. If the temperature rises or falls significantly, then we can talk about the death of the fetus.
• Weeks 7-8 are marked by BT indices in the range of no lower than 37.1-37.3 and no higher than 38 degrees. With abnormal indicators, an additional health diagnosis (ultrasound) should be performed. By the end of this period, the fetus becomes less susceptible to various factors, however, it is better to continue to schedule BT.
• The 9-10th week should maintain previous indicators within 37 and below 38 degrees. Otherwise, the help of a doctor is recommended.
• The 11th week is marked by a slight decrease in BT to the levels of 37-37.2 ° С. If the temperature remains high, then you should consult a gynecologist.
• The 12th week is determined by BT marks at 37-37.8, a maximum of 38 degrees. Ideal are indicators at 37.6-37.7 ° C.

In the following weeks, the level of BT remains within the normal range - in the region of 36.6-36.8 degrees. Too high or too low BT indicate hormonal disorders, the threat of miscarriage and other pathologies. At the 40th week, BT increases to 37.4 or more degrees (by 0.5-0.8 ° C). Some women also have a high fever before giving birth.

Forecast

Basal temperature helps in solving many problems, including during the entire pregnancy. It’s not enough just to conceive, you still have to endure, which is 40 long weeks. A lot can happen during this period. In order for the prognosis to be favorable, it is necessary to measure BT during the entire pregnancy in order to note deviations from the norm and to seek help in time.