Ovulation can be detected in the hospital by cervical mucus examination or ultrasound examination. 1. An ovulation monitoring usually requires 5-6 or 6-7 ultrasound tests in the hospital to determine the ovulation situation. 3. If there is luteal formation after ovulation, the level of progesterone value will rise significantly. However, if a woman has no other diseases and only wants to know the ovulation period, it can usually be solved outside the hospital: 1. Calculate the ovulation period: for a woman with regular menstruation, especially if her menstrual cycle is around 28 or 30 days, her ovulation time is usually around 14 days before the next menstrual period comes; 2. Measure the basal body temperature: if you start fixing a time period after your menstruation and wake up inactive every morning Measure the body temperature for a month, draw a basal body temperature chart, generally you can see a 0.2℃ or 0.3℃ rise in body temperature on the curve of basal body temperature after ovulation; 3. Apply ovulation test paper: Ovulation test paper is checked on the 10th day of menstruation, if two red lines appear as deep and start to become lighter, it can be regarded as a sign of ovulation.