When the luteinizing hormone in the body reaches its peak, ovulation will occur about 24-48 hours after the peak, so if the ovulation test is strongly positive, choose to have intercourse within 24 hours to increase the chances of pregnancy. If the ovulation test has turned weakly positive, it means that you have basically finished ovulating. It is important to know when a strong positive test appears and then choose to have sex wisely to increase your chances of getting pregnant. It is recommended to use ovulation test strips to test the urine at around 10 o’clock in the morning from the twelfth day of menstruation, once a day, and after a strong positive result, arrange sex reasonably to increase the chance of pregnancy.