Ovulation monitoring is to better grasp the pattern of ovulation, accurately determine the time of ovulation, and predict the time of ovulation within 1-2 days or a few hours. There are many ways to monitor ovulation: 1, regular menstruation can be based on the menstrual cycle to predict ovulation, for the next menstrual period 14 days before the onset of menstruation. 2, the cervical mucus observation, ovulation cervical mucus will become thin, long drawing degree, like egg white. 3, the basal body temperature test, generally women will appear after ovulation temperature rise, but the temperature rise is generally already ovulated. 4, urinary LH paper test, before ovulation there will be a peak of LH in the body. Detection, before ovulation there will be a peak of LH in the body, this peak can be monitored with LH test paper. When there are two obvious red lines in urine LH test paper, ovulation may occur in 10-24h. 5, ultrasound test, generally in the 10th-12th day of menstruation to start monitoring.