When a woman is ovulating, she will have increased vaginal discharge, which is thin, colorless, transparent and stretched, and a high sex drive, caused by the elevated estrogen level in her body. During ovulation, there will also be an increase in basal body temperature at 0.3-0.5°C. A few women will experience mild lower abdominal pain during ovulation, which is caused by the rupture of the follicle and the elimination of the egg from the follicle. There will also be a small amount of vaginal bleeding, which is caused by the fluctuation of estrogen levels in the body after ovulation, resulting in the shedding of a small amount of endometrium, which will end in 1-2 days. If a woman’s usual menstrual cycle is regular and ovulation occurs about 14 days before her next period, she can have sex during ovulation to have the best chance of pregnancy if she intends to have children. If your period is irregular, you can also use ovulation test strips, combined with ultrasound to monitor ovulation more accurately.