Women are most likely to get pregnant if they have sex during ovulation. For women who have a regular menstrual cycle, i.e., menstruation occurs in about 28 days, the 14th day before the next menstrual period is called the day of ovulation, and the chances of getting pregnant are higher if you have intercourse within 4-5 days before and after the day of ovulation. Sperm needs to combine with an egg cell to form a fertilized egg in order to get pregnant. Normal women of childbearing age will ovulate during the ovulation period, and it is easier to get pregnant if you have sex during this period. For women with irregular menstrual cycles, you can take ovulation test strips or ultrasound to monitor the follicles, and it is easier to get pregnant if you have sex after monitoring ovulation. In addition, women should maintain a good mood during the preparation for pregnancy, and start supplementing folic acid three months before preparation for pregnancy to prevent fetal neurovascular development malformation.