The chances of pregnancy are high when you have intercourse on the day of ovulation. Usually, the follicles are in the best condition for conception within 24 hours after ovulation. If you are planning to have a baby, you can go to the hospital around the 10th day of menstruation to have an ultrasound to monitor the status of the follicle and its discharge, and then you can have intercourse on the day of ovulation to prepare for pregnancy. If the male semen is of good quality, the female fallopian tube is clear, and both husband and wife are in good health, the chances of pregnancy are high if you have intercourse on the day of ovulation. If the couple has been having normal intercourse for more than a year and still not pregnant, it is recommended to go to the hospital for a checkup, the woman can have a tubal imaging to check whether the fallopian tubes are open, and the man needs to check whether there are abnormalities in the semen, and prepare for pregnancy under the guidance of the doctor.