The average woman has more than 400 mature eggs to ovulate in her lifetime. The ovaries are the main site of ovulation. There is usually one ovary on each side of the body, and ovulation alternates between the left and right sides of the body, with only one egg maturing and ovulating each month. You can monitor which side of the ovary is ovulating according to the ultrasound examination, so as to guide the coitus, which is easier to conceive. Ovulation usually occurs about 14 days before the next menstrual period, which is the time of ovulation, and it is easier to conceive if you have intercourse during this time. If you don’t want to get pregnant, you must do a good job of contraception during the ovulation period, so as not to accidentally get pregnant and have to go to the line of abortion surgery, which will cause some harm to the body.