What is meant by this concept?
With the onset of puberty in girls, menstrual periods begin - they count each monthly cycle. After about 10-14 days, ovulation occurs - the exit of a mature egg from the follicle. It is at this time and possible conception.
However, in calculating the fertile phase of the menstrual cycle, a parameter such as the life span of spermatozoa is taken into account. Usually it is about 3-5 days, i.e. having got into the reproductive organs of a woman, male sex cells can retain their mobility.
Given this fact, the beginning of a favorable period is established 5-6 days before the time of ovulation. The end of the fertile phase of each menstrual cycle is due to the death of the egg. It occurs approximately in 24-48 hours from the moment of exit of the sexual cell into the abdominal cavity.
How to calculate the fertile phase correctly?
Having dealt with what is the fertile phase of the cycle, what does this term mean, let's consider the algorithm for calculating it.
First of all, a woman should know exactly when her ovulation occurs in the body. To do this, it is sufficient to use a test to determine ovulation. This kind of research takes about 7 days.
Thus, every woman, knowing what the fertile phase means, can easily establish a period during which conception is possible. This information will help especially those women who plan pregnancy, but within a few months already can not become pregnant. If sex in the days that are favorable for conception does not bring the desired result, then it is necessary to consult a doctor.