For ovulation monitoring, for women with regular menstruation, ovulation occurs 14 days before the next menstrual period. Other methods can also be used, such as temperature monitoring, where the body temperature rises by 0.3-0.5°C after ovulation, so you can monitor your basal body temperature at home. In addition, you can buy ovulation test strips from pharmacies. After a positive ovulation test strip, ovulation may occur within 24 hours. The most accurate way to monitor ovulation is to go to the hospital to monitor ovulation under ultrasound, starting on the 10th day of the menstrual cycle. The doctor will guide you on the day when ovulation is likely to occur based on the size and growth rate of the follicles, and instruct you to have intercourse.