Ovulation in women with irregular menstruation also occurs about 14 days before the next menstrual period, and the ovarian corpus luteum will atrophy in about 14 days if there is no fertilization after the egg is discharged. As in the case of irregular menstruation and irregular ovulation, it is better for women to determine the ovulation period comprehensively by testing ovulation test paper or dynamically monitoring ultrasound, and according to the changes in the amount of leukorrhea, which is more accurate. Ovulation occurs in a short period of time when there are two red bars on the ovulation test paper, the size of the follicle is about 2 centimeters on ultrasound, and the amount of leukorrhea increases, showing a clear and high pulling degree. If a woman wants to get pregnant and have children, it is best to have sex during the ovulation period to have a higher chance of getting pregnant, and other times when ovarian ovulation does not occur, the woman will not lead to pregnancy.