Ovulation is usually calculated according to the menstrual cycle, which begins 14 days before menstruation, and the day of ovulation and the five days before and the four days after it are together called the ovulation period.
If a woman’s menstrual cycle is regular, the appearance of the day of ovulation will be more regular, usually from the first day of the next menstrual period, counting down 14 days or minus 14 days is the day of ovulation. Ovulation before 5 days and 4 days after the day of ovulation, a total of 10 days, is the period of ovulation.
If a woman has an irregular menstrual cycle, subtract 18 days from the number of days in the shortest menstrual cycle to calculate the date of ovulation. Ovulation time can also be measured by measuring basal body temperature, observing changes in cervical mucus, and using ovulation test strips, etc., which is conducive to women grasping their own ovulation time and facilitates the preparation for pregnancy.
In the clinic, women who want to prepare for pregnancy can be helped to conceive through the projection of ovulation, but it is not recommended to use this projection to contraceptives, so as to avoid accidents.