Ovulation is usually around 14 days before the next menstrual period, but there are some individual differences and the exact time of ovulation depends on the woman’s menstrual cycle. If the patient has regular menstruation and has her period on the 10th and her menstrual cycle is 30 days, she will ovulate around the 26th, and the 4 days before and 5 days after the 26th are the ovulation period. If you have no plans to get pregnant, you should use contraception during ovulation. However, ovulation can only be calculated based on the last menstrual period for women with regular menstruation, and the ovulation time is affected by many factors, so the result is not entirely accurate. If you are planning to get pregnant, you can combine ovulation test strips or ultrasound to monitor ovulation to help improve the chance of conception, and pay attention to regulating your diet by eating more fresh vegetables and fruits, drinking more water, eating a light diet, and avoiding spicy and stimulating or greasy foods.