The period is called menstruation, and ovulation occurs about 14 days after menstruation and before the next menstruation. If a woman has a normal menstrual period, the day of ovulation is usually 14 days before her next menstrual period, and the five days before and the four days after a woman’s ovulation day belong to the ovulation period. Female menstruation is generally divided into four phases: the ovulation phase, the secretion phase, the menstrual phase, and the proliferation phase. After a woman’s menstrual period is the endometrial hyperplasia phase, when the endometrium has proliferated to a certain extent, it reaches the ovulation phase. If a woman gets pregnant at this time, the fertilized egg will be deposited in the cavity of the woman’s uterus, and the endometrium will provide nutrients to the fertilized egg. Women will ovulate 1-2 weeks after menstruation. If a woman’s ovulation period is abnormal, it is recommended that she go to the hospital in time for examination and treatment as prescribed by the doctor.