Regular vacation refers to menstruation. For women with irregular menstrual cycles and delayed menstruation, it is not possible to project ovulation in advance, but only to wait for the onset of menstruation to project ovulation forward. The day of ovulation is usually 14 days before the first day of menstruation, and 5 days before and 4 days after the day of ovulation.
After ovulation, the corpus luteum is formed, which atrophies and menstruation occurs, and the corpus luteum usually lives for about 14 days. Therefore, the day of ovulation is usually 14 days from the first day of menstruation. Ovulation occurs from 5 days before to 4 days after the day of ovulation.
During the ovulation period, the leukorrhea will become thin and transparent in the form of silk, and some women will have ovulation pain, you can roughly guess whether you are in the ovulation period through these two points. At the same time, note that in the ovulation period is very easy to get pregnant, if there is no need for pregnancy, to do a good job of contraception.