If the vaginal discharge increases and can be taken by hand and observed to be transparent and stretched, it is probably ovulation; 2) you can monitor ovulation by ultrasound; 3) you can buy ovulation test strips from a regular pharmacy to monitor. The most accurate method is ultrasound monitoring, which is also the most costly method. If you are preparing for pregnancy and want to know the exact situation of ovulation, you can visit the obstetrics and gynecology department of a regular hospital and choose a suitable monitoring method according to the examination results and the advice of your physician. If you are just counting ovulation for contraception, the ovulation period is fixed for women with regular menstruation, so you only need to follow the first method to count ovulation.