How to measure the basal temperature for determining pregnancy, ovulation: description, graph. Increase and decrease in basal temperature: possible causes

To diagnose ovulation and early pregnancy, the basal temperature indications are used.

To get reliable information, you must learn to properly measure the basal temperature and adhere to certain rules.

What is basal temperature?

• Indicators measured in a non -standard method (rectally) are called basal temperature. The smallest mark is fixed immediately after awakening in a state of rest. Daily monitoring of the basal temperature (BT) allows you to draw up a graph of ovulation during cyclic changes in the female body.
• The repeating dynamics of BT for 2-3 months makes it possible prescribe the date of ovulation in the next cycle. BT measurements carry important information for confirmation or refutation of pregnancy.

How correctly, what thermometer and how long to measure the basal temperature?

3 methods are used to track temperature indicators - measurements in the oral cavity, vaginally or in the rectum. The selected method should be constant for one cycle. Each of the methods requires a different amount of time.

It is most effective to build a graph of basal temperature according to the obtained indications in the rectum.

• When conducting control measurements in the intestine, it is enough to withstand for 3-5 minutes. The thermometer is inserted into several shares.
• The duration of the vaginal method of diagnosis is also at least 3 minutes. The thermometer needs to be immersed in half.
• In the oral cavity, the thermometer is maintained for at least 5 minutes. Under the tongue. It is important here that the mercury tip is completely covered.

It is advisable to perform measurements at the same time. The reference point is considered the first day of menstruation. It is most convenient to perform the procedure in the morning. If you get up at different times, then you do not need to be attached to the clock - conduct the study immediately after waking up.

How to measure the basal temperature with an ordinary mercury or electronic thermometer, in the mouth?

• Temperature jumps during the cycle are very similarly. To remove accurate indicators, it is recommended to use a mercury thermometer. Working with one thermometer excludes error.
• The electronic device effectively works when oral temperature measurements. The advantages of such a device are complete safety and a function with memorizing the latest results. The electronic thermometer makes a sound signal, after which it is recommended to withstand the device for an additional minute.
• The mercury meter before use is sure to get down to the mark below 35 ° C. For rectal use, you can additionally use a softening cosmetic product. After measurements of the basal temperature, the thermometer must be washed and dried, thus preparing for the next use.
• The oral method of measurement is carried out during the first minutes of wakefulness.

You can not talk or bring the body into physical activity. Lips must be closed.

• The mercury thermometer is withstanded in the mouth for 3-8 minutes. The electronic thermometer is kept under the tongue to the sound signal.
• It is important that in the process of measuring the basal temperature you do not experience discomfort. In an uncomfortable position of the thermometer, change the position to a more comfortable one.

At what time of day to measure the basal temperature, is it possible to measure it in the morning, at lunch, in the evening?

• The main rule for obtaining informative data is to fix the temperature indicators immediately after waking up (sleep duration at least 3 hours).
• Before going to bed, prepare a thermometer with knocked down mercury. Sharp morning movements can provoke temperature surges.

What should be the basal temperature when ovulation and after ovulation is normal without pregnancy: BT graphics with examples and decryption

• Before ovulation, the indicators are reduced, ovulation provokes an increase in degrees.
• You can track such a pattern only with regular measurements for 2-3 months.

A healthy woman is normal without pregnancy by cycle days in 28 days:

• During the first two weeks, it is noted falling the level of progesterone - indicators within 36.4-36.8 ° C.
• On the eve of the release of eggs from the ovary, indicators Reduced by 0.2-0.3 ° C.
• After ovulation, the sexual hormone increases, provoking the growth of indicators to marks 37.2 ° C. The indicator lasts up to 14 days.

Before the start of the next cycle, the stable indicator is insignificantly lowered. Stamps exceeding the normal level in the first phase and non-access to the norm in the second require the correction of the hormonal background.

The correct schedule of indicators helps to identify not only ovulation, but also deviations in the body.

Schematic display of marks on the thermometer:

• Two -phase schedule with stable indicators - The full -fledged ovarian work.
• Pronounced surges in the basal temperature in any of the phases of the cycle or monotonous curve for 4 weeks - lack of ovulation.
• The shortened duration of the first phase, insufficient temperature rise in the II phase- weak activity of the yellow body of the ovary.
• An increase in the II phase is not less than 0.33 ° C is characteristic of the thermogenic effect of progesterone during the attachment of the egg to the uterine wall.
• The same indicators throughout the cycle are preserved in the absence of ovulation.

What should be the basal temperature before menstruation, a week before menstruation is normal?

• Normally, the basal temperature in the second half of the cycle rises by several degrees, in contrast to the time period before ovulation. Indications in degrees 37-37.1 ° C.
• Low temperature indicates lack of hormonesthat can be adjusted with medication. Preparations are taken after the onset of ovulation. Pregnancy is not the reason for the interruption of the medical course. Sharp jumps of hormonal background can provoke abortion.

Independent measurements of the basal temperature at home can be erroneous due to many different factors, so in the case of deviations, you do not need to be nervous until you get a doctor’s consultation.

How the basal temperature changes, if fertilization occurred, during pregnancy in the early stages to delay: description, graph of the norm

• The menstrual cycle in each case has an individual duration. After ovulation, the average phase length is no more than 14 days.

Pregnancy is accompanied by a stable elevated basal temperature for 2 weeks.

• On the 7-10th day after ovulation occurs implantation of the egg And an insignificant daub from the vagina appears. During this period, a jump in the temperature can occur for 1-2 days, and then return to the mark of 37.1 ° C again.
• The ideal schedule of basal temperature resembles a bird flying up. A measured, zigzag -shaped or chaotic pattern of the curve requires additional diagnosis.

Does basal temperature always increase during pregnancy?

In the second half of the cycle, under the influence of progesterone, women are noted in women. The indications of the basal temperature increase regardless of whether the egg was fertilized or not.

• During pregnancy, a week and a half after ovulation, the fetal egg is attached to the endometrium. The implantation process can reduce the temperature indicator for a short period of time.
• The yellow body continues to produce progesterone, the BT persists at the mark of 37 ° C. If the indicator does not decrease over 2 weeks after ovulation, preliminary diagnosis can be carried out using a pregnancy test.
• If the period of menstruation does not occur according to the planned calendar, and the temperature remains at the mark of 37 ° C, it can be assumed that the pregnancy has occurred.

In the absence of menstruation and 38 ° C, consult a doctor, since the problems of the gynecological profile are not excluded.

• The low temperature in the 2nd phase of the cycle and the absence of menstruation may also indicate pregnancy. Mark 37 ° C-due to the low level of the hormone, which can at any time lead to perenchus. In both cases, an urgent consultation of a doctor is required.

How does basal temperature change after IVF?

• Before the planned eco, a woman needs to make a basal temperature schedule of at least 3 months. The procedure of artificial fertilization is a powerful intervention in the natural hormonal background. The basal temperature schedule ceases to match the patterns of past months and ceases to be informative. It is important after IVF.
• Tracking helps to track both pregnancy and the threat of miscarriage. A foreign body provokes an increase in both basal temperature and temperature recorded in the usual way.
• After eco, normal indicators - 37.2-37.5 ° C. During the implementation, the temperature for a short period is slightly reduced.
• If the value below 37 ° C or is too high, you need to consult a doctor and diagnose the body for various deviations.

How does the basal temperature change for pregnancy weeks from 3 to 18 weeks of pregnancy?

Monday control of basal temperature during pregnancy allows you to track the development of the fetus in the womb. After the first trimester, the readings lose their information content.

• During the first 3 months of normal pregnancy, the average value of the basal temperature with a mark of 37 ° C is preserved.
• From the moment of conception to 16 weeks, the temperature indicator remains due to the production of progesterone produced by the yellow body.
• Since 16 weeks, the hormone is produced by the placenta.

Increasing basal temperature, reduced indicators during pregnancy: possible causes

The high basal temperature is affected by a number of conditions of the body revealed by diagnosis.

Typical reasons include:

• attachment of the egg outside the uterine cavity
• inflammation of the genitals
• infectious complication in the process of eco
• infectious disease

Also, the deviation of temperature indicators is affected by the intake of drugs, alcohol intoxication, excessive physical activity. It is possible to establish the cause of a sustainable increase in temperature on the basis of a complex of tests and ultrasound research.

• Lowering indicators occurs against the background physical fatigue, nervous shock, colds, adverse weather conditions.
• If, in the absence of negative factors, the basal temperature drops below 36.7 ° C, then it hangs over the baby risk of miscarriage. The future mommy requires an urgent doctor's consultation.
• In individual cases, a low basal temperature may be the norm for the patient and do not carry the danger to the baby.

The basal temperature 36.8-37.7: What does it mean?

• Basal temperature with a threat of miscarriagegives underestimated indicators. The low level of progesterone is often accompanied by pulling pain and bloody discharge.
• Basal temperature with frozen pregnancyit can give deviations at various periods - during the period of implantation of the embryo, in the process of forming the fetus or at a later date. There are a lot of risk factors for freezing. There is a decrease in progesterone and a digital fall from 36.9 to 36.4 ° C.

• With an ectopic pregnancy (which can flow asymptomatic)  it is about 38 ° C. But this is illegitimate. In rare cases, elevated temperature is a kind of feature.
• Increased indicators in the inflammatory processovercome the mark of 37.5 ° C. The cause must be diagnosed under the supervision of a doctor.

Does the basal temperature change when taking duphaston and how?

• To correct the amount of progesterone in the female body, Duphaston is prescribed. In case of violations of the hormonal background, the effective drug contributes to the onset of the long -awaited pregnancy.
• When constructing a graph of basal temperature, the question arises: does duphaston affect the indications? Thanks to medical studies, it has been established that the basal temperature when taking Dufason does not give implausible results. An exception is to take an increased dose of the drug - more than 30 mg or an allergic reaction to the drug that can distort a reliable result.

• For patients with a dysfunctional course of pregnancy, schematic temperature control is a necessity and taking duphaston is not a reason for its cancellation.
• In isolated cases, the relationship between the intake of duphaston and the basal temperature may appear, as a result of the individual reaction of the body to the drug.

We have also prepared healthy articles about health for you:

• Than to anoint a burn
• On the legs are red points: Reasons
• What do white spots on the nails mean?
• How to soften nails on your feet
• How to put mustard plasters correctly

Video: proper measurement of basal temperature