Basal temperature during early pregnancy before the delay (graph)

Many women who want to conceive a child as soon as possible try different methods in order to find out about their interesting situation even before the absence of the next menstruation. The basal temperature during pregnancy in the early stages before the delay may show that fertilization has nevertheless occurred, since the BT indicators during gestation differ from the usual ones. To obtain reliable results, it is important to make measurements correctly and if strange marks on the thermometer appear, immediately contact a specialist.

What is basal temperature

Basal temperature is the values ​​determined by measuring it on the surface of the mucous tissues of the body. Translated from Greek, the word basal means "basic".

The values ​​obtained as a result of measurements are the closest to the temperature inside the body, and the physiological basal temperature is natural indicators recorded in healthy representatives of the beautiful floor.

In modern times, few women use the temperature measurement technique to diagnose the onset pregnancy, although in the early gestation period it shows the result of unprotected intercourse with a high accuracy.

To enhance the reliability of measurements, it is necessary to read the thermometer readings obtained from mucous tissues in a calm state.

You can measure BT in the following natural holes:

• vagina;
• anal opening;
• mouth.

Measurements in the mouth and vagina are not very accurate, so most women record thermometer readings obtained by measuring in the rectum.

The use of ultrasound, hypersensitive pregnancy tests made the method of measuring basal temperature different popular, as before, but with its help it is possible to track the moment of the onset of ovulation and conception at home conditions.

What is BT measured for?

The baseline temperature allows you to get information about how the hormonal background of a woman changes depending on the stage of the menstrual cycle:

Follicular phase

The phase begins on the first day of menstruation and lasts an average of 14 days (normally 7–21 days, depending on the length of the cycle). Due to the increased production of estrogen, follicles mature, in one of which the egg will develop. A few days before ovulation, the hormone level rises sharply, and the basal temperature drops by 0.2-0.3 ° C, since estrogen does not affect its change as pronounced as progesterone;

Luteal phase

The phase begins immediately after the ovulatory phase, it is from the values ​​obtained during measurements at this time that one can judge whether pregnancy has occurred. The luteal stage is controlled by progesterone, it is necessary to build up the endometrium of the uterus, so that in case of gamete fertilization, it can penetrate into the wall of the genital organ. Progesterone triggers an increased thermoregulation process, due to which the temperature in the luteal phase begins to rise.

If conception did not occur in the second phase, the indicators will decrease to normal before the start of the next menstruation. In case of pregnancy, competent temperature measurement will help to find out about this fact even before the delay in menstruation - it will be increased.

In addition to self-diagnosis of pregnancy, BT fixation will help:

• find out if the concentration of estrogen and progesterone in the body is normal;
• track exactly when it ends follicular phase, there is an release of the egg into the uterus;
• diagnose violations of the organs of the reproductive system and cycle failures;
• suspect any early pregnancy problems;
• guess about the presence of an inflammatory process in the pelvic organs, which is the reason for long unsuccessful attempts to get pregnant.

It is necessary to consult a gynecologist if a woman does not notice a sharp change in temperature during the ovulatory phase or BT rises by less than 0.4 ° C. This indicates a hormonal disorder, as a result of which the egg does not mature inside the follicle, does not goes into the uterus, or the progesterone required for its introduction is produced in insufficient quantity. With these problems, a woman can make efforts to get pregnant and bear a baby, but they are not successful.

How to take measurements correctly

In order to build a BT schedule during pregnancy before a delay, it is important to correctly conduct measurements, because the body of every woman is individual and very susceptible to minimal changes external environment. Fluctuations in temperature, even in one tenth of a degree, are important for assessing the health of the reproductive system and the correct development of the ovum at an early stage.

BT measurement rules:

1. It is better to take measurements immediately after waking up, without getting out of bed, between 05 and 07 o'clock in the morning - at this time, the maximum peak in hormone production is observed.
2. It is advisable to measure the temperature in the rectum, and not in the mouth or vagina - this can give inaccurate results.
3. Use an accurate thermometer, preferably a mercury one, rather than an electronic one, since even a tenth of a degree is important when fixing the temperature. It must be stored in a place that is easy to reach, shaking off past results in the evening.
4. Measure BT by holding the thermometer in the rectum for at least five minutes, the insertion depth is 2-3 cm. During the measurement, you should not turn around, rise in bed, after which it is necessary to write down the result.
5. Measure after a full sleep lasting at least 5-6 hours in a row.
6. If a woman ate fatty, spicy food, had sex, slept poorly, or flew on an airplane on the evening before taking the temperature, it is important to enter this information in the notebook with the results. Intimate contacts should be excluded 5–6 hours before BT fixation.

In the case of an acute viral or bacterial infection, when the body temperature is at high marks, it is not recommended to take BT measurements, since the data will be incorrect.

Normal temperature readings before and after fertilization

If you know what thermometer readings should be at different phases of the cycle, you can easily determine the period of ovulation and choose the time favorable for conception. Normal BT values ​​are presented in the table.

Cycle phase	Cycle days	Prevailing hormones	Normal BT readings
Follicular	1–12	Estrogen	36.2 - 36.6 ° C
Ovulation	13–14	Estrogen, follicle-stimulating, luteinizing	Down to 36.2–36.3 ° C Follicle rupture 36.4–36.7 ° C After ovulation 37–37.4 ° C
Luteal	15–28	Progesterone	37.1-37.4 ° C

If fertilization has occurred, the following fluctuations will be visible on the BT measurement graph:

1. The day of fertilization is 36.4–36.7 ° C, the changes are still invisible, only after 5–7 days, when the fertilized egg enters the uterine cavity, the indicators rise to 37-37.3 ° C.
2. The introduction of the embryo into the uterine wall - a decrease in temperature by 0.2-0.4 ° C (implantation retraction). 4-5 days after implantation - BT indicators increase above 37 ° C.
3. The next one to two weeks - the temperature stays at 37-37.5 ° C, but should not fall below.

By the overestimated BT values ​​just before the beginning of the expected critical days, a woman can guess about pregnancy, even if there are no other early signs of conception (breast swelling, nausea). After a delay, conception can be confirmed with a pregnancy test.

Temperature chart depending on the duration of pregnancy

The rise in basal temperature during pregnancy before delay is shown with examples in the table below, depending on the time elapsed from conception. The increase in indicators is due to the production of the hormone progesterone by the corpus luteum. This temporary organ forms at the site of a follicle that has burst and released a mature egg. The temperature will remain elevated until, in case of pregnancy, yellow the body will function and not atrophy - this happens at 12-15 weeks, when it is formed placenta.

The term of conception	Obstetric week	BT norm in ° C	Possible reasons for deviations
1	3	37-37,5	Decrease - the risk of miscarriage, increase - the presence of an inflammatory process
2	4	37,1–37,5
3	5	37,1–37,7
4	6	37,1–37,7	With a decrease in indicators, and then a sharp jump in temperature to 37.9-38 ° C, one can suspect a frozen pregnancy

Abnormal basal temperature

Thermometer readings do not always correspond to different phases of the cycle and are normal - this may indicate a change in the woman's health status. On the forums, reviews about basal temperature indicators during early pregnancy, recorded before the delay in pregnant women, confirm the possible reasons for the deviations in the availability the following factors:

1. Inflammatory process in the pelvic organs - an increase in temperature is recorded on days when, normally, it should, on the contrary, become less (before and during menstruation).
2. Deficiency in progesterone production - manifests itself as a reduced temperature compared to the normal temperature for the luteal phase (less than 37 ° C).
3. Physiological features of the female body - if at a certain stage of the cycle the temperature is slightly lower or higher normal (by 0.1-0.3 ° C), but the graph contains all natural peaks, errors may be to blame measurements.
4. Spontaneous ovulation - an increase in temperature, which should be on schedule during the release of an egg into the uterus, is observed earlier or later. The reason is the shift in the cycle due to hormonal disruptions and somatic diseases.
5. Re-ovulation - happens in 7-10% of cases. In the follicles, two eggs mature, which can enter the uterus at the same time or in turn. In this case, there are two peaks of BT increase.

By the growth of BT, and then its decrease, after confirmation of the fact of pregnancy, one can suspect the threat of miscarriage.

Physiological and hazardous results of BT measurements in early pregnancy

What should be the normal basal temperature during pregnancy, before the delay? It ranges from 37 to 37.5 ° C, low or too high values ​​should be a reason to consult a doctor. The sooner a woman confirms the fact of conception by reliable methods (blood test for hCG, ultrasound), the more chances are to save the embryo and prolong gestation if problems are observed at an early stage.

Elevated temperature

Exceeding the normal marks of the thermometer is caused by the following reasons:

• violation of the rules for measuring BT;
• therapy with hormonal drugs for long-term infertility or in preparation for IVF;
• infections occurring against the background of an increase in temperature (flu, tonsillitis, otitis media, etc.);
• inflammatory processes of the ovaries and uterus;
• ectopic embryo location;
• late period of a frozen pregnancy.

When pathological conditions are manifested not only by an increase in BT, but also by a general deterioration in well-being, it is necessary to seek help from specialists as soon as possible.

Decrease in thermometer readings

It is imperative to visit a doctor, because low BT can signal problems:

• risk of miscarriage;
• started spontaneous abortion;
• frozen pregnancy.

Lower temperatures than normal may be the result of the body's natural characteristics - if during ovulation there was a peak BT at 36.7-36.8 ° C, then after conception the indicators will be at the level of 36.9 or 37 degrees.

When to worry

Dangerous symptoms that should alert a woman at an early gestation period include:

• leakage from the vagina of a bloody secretion of scarlet or dark brown color;
• an increase in the tone of the uterine walls - accompanied by a feeling that the stomach has become like a stone;
• the sudden disappearance of previously manifested symptoms of conception - nausea, breast enlargement (the mammary glands become soft and acquire the same size);
• a sharp deterioration in general condition;
• heat;
• fever, chills;
• severe vomiting;
• acute pain in the lower abdomen;
• a feeling of pressure in the anus;
• a sharp drop in blood pressure.

In the case when deviations in the basal temperature chart during early pregnancy, before the delay accompanied by dangerous signs, you need to call an ambulance or go to the hospital on one's own.

Ectopic pregnancy

In fact, an ectopic pregnancy is not much different from a normal one, only the development of the fetus does not begin inside the genital organ, but in the ovary, fallopian tube or peritoneum. The fetus, which is fixed in the wrong place, does not inhibit the production of progesterone by the corpus luteum, therefore, the thermometer marks when measuring BT may be normal and correspond to an early date gestation. To be guided in such a situation by the results of a pregnancy test is not informative - it can show one strip, two bright, or one bright, and the second pale.

Temperature indicators will begin to deviate from the norm only at 4-5 weeks of gestation, when the fetus reaches a larger size.

The growing embryo injures the fallopian tube, causing the development of an acute inflammatory process and hyperthermia.

Also, an ectopic pregnancy is manifested by signs:

• frequent vomiting;
• blood pressure drops sharply;
• fainting;
• severe abdominal pain.

The painful sensations are not stopped by taking medication and become even stronger after the rupture of the fallopian tube.

Frozen pregnancy

If the development and growth of the embryo stops, it dies. The corpus luteum stops producing progesterone, which is why normal BT readings tend down to 36.3–36.9 ° C. It is impossible to independently diagnose the fading of pregnancy; a specialist should do this after conducting an examination. When BT remains normal, but the fetus still dies, additional symptoms are pulling pains in the lower abdomen, at first dark red, and then greenish discharge from the genital tract, indicating infection of the uterus and the development of endometritis.

Threat of spontaneous abortion

When the basal temperature during conception is kept until the delay at the level of 36.8-36.9 ° C, this indicates a lack of progesterone. If the hormone is produced in small quantities, even when the embryo is implanted, it will not be able to normally stay inside the uterus due to its contractions and will be rejected. It is necessary to go to the hospital if the course of smearing vaginal discharge and pulling sensations in the abdomen additionally manifests itself - they indicate the beginning of fetal rejection and miscarriage.

The fetus can be saved if progesterone-containing drugs are prescribed to the patient in time to continue bearing.

Measuring basal temperature is not the only way to determine favorable days for conception and pregnancy. But it is a good help in self-diagnosis of ovulation, the beginning and end of different phases of the cycle and menstruation. The longer a girl measures BT, the easier she will be able to navigate in the received graphs and timely contact a doctor if she suspects health problems.