The normal female ovulation period is usually 10 days. In women with regular menstruation, the 14th day before the next menstrual period is called the day of ovulation, while the phase from 3 days before to 3 days after the day of ovulation is called the ovulation period, which lasts for 6 days. In fertile women, one or two dominant follicles mature and are expelled from the ovary each menstrual cycle. The stage from follicle maturity to follicle inactivity is called ovulation, and this is the stage when the follicle is able to unite with sperm to form a fertilized egg for successful conception. If a woman is planning to conceive, she can choose to have sex during ovulation to increase her chances of conception. If she is not planning to conceive, she should avoid having sex during ovulation or use contraception during sex. In addition, women need to maintain a good mood in their daily life, avoid overwork, and ensure that their menstrual cycle is regular, so that ovulation is naturally regular.