When does ovulation occur?

Under the ovulation in gynecology is accepted to understand the physiological process of the release of a mature egg from the follicle into the abdominal cavity. It is at this time that conception and the onset of pregnancy are possible. Therefore, it is often necessary for women who want to give birth to a child to determine the time when ovulation occurs in their body.

How can I determine the time of ovulation?

To date, there are several ways to establish this fact. However, for the sake of fairness, it must be said that none of the known methods can provide a 100% guarantee that ovulation will occur directly on the intended day. The explanation for this can be the fact that the process itself is very influenced by it, and can change its terms depending on the impact on the woman's body of external factors (stress, experience, hormonal failure, etc.).

The most common methods that allow you to determine the moment of ovulation in a woman's body are: calendar, according to the basal temperature chart, with the help of ultrasound, on test strips. Let's consider each of them separately.

How to determine the time of release of the oocyte from the follicle using the calendar method?

So, the most common and simple way that helps a woman determine when her body is ovulating is the calendar method. Its effectiveness is determined by the regularity of the menstrual cycle, i.e. the probability of an egg release at a set time is much higher if the menstruation occurs every month on the same day.

According to this method, this process is observed 14 days before the date of the monthly. Thus, in order to determine when the day of ovulation will come, the woman needs to add the duration to the first day of the cycle, and after that 14 days are taken from the received date.

However, it is worth noting that the reliability of this method is small in view of the presence of such phenomena, for example, as early (late) ovulation, is when the output of a mature egg occurs not in the middle of the cycle, but sooner (later) than the deadline.

How to determine when ovulation occurs in the body using the basal temperature chart?

Often, in order to understand when a process such as ovulation occurs in the body, the basal temperature graph is used. In order to apply this method, a woman needs to measure the temperature in the rectum every morning for at least 1-2 cycles. On average, it is 36.3-36.5 degrees. The fluctuations of its values ​​throughout the entire menstrual cycle are insignificant (0.1-0.2 degrees).

During the release of the ripe egg, the basal temperature rises to 37-37.3 degrees. In this case, the woman marks such temperature values ​​immediately before the menstrual flow begins. In those situations where the monthly is not observed for a long time, and the basal temperature is in the range 37.1-37.3 degrees (more than 10 consecutive days), one can judge about the onset of the pregnancy period.

How can I calculate when ovulation occurs with a test strip?

In appearance, these means of diagnosing the release of the egg from the follicle are very similar to the express test for determining pregnancy. However, the principle of their action is based on the determination of the concentration in the body of the girl luteinizing hormone. It begins to be synthesized approximately 24 to 36 hours before the rupture of the follicle membrane. With a regular menstrual cycle, similar studies should be started about 17 days before the date of the expected menstrual cycle.

Ultrasound is the most reliable way to determine the date of ovulation

The most reliable method for determining the time of ovulation is ultrasound diagnosis. This method is suitable for those women who want to determine when ovulation occurs in an irregular cycle. In such cases, observe the follicle every 2-3 days, and begin approximately 4-5 days after the end of the monthly discharge.