According to the female physiological cycle, ovulation occurs first, and after ovulation, there is no conception and menstruation will occur normally. If you have normal sex during ovulation, the sperm and egg combine to form a fertilized egg that will settle in the uterine cavity, then you will enter the early pregnancy period, and you will not have a menstrual period. If you have a regular menstrual cycle, ovulation occurs about 14 days before the next menstrual period, and ovulation occurs about 15 days earlier than the onset of menstruation. Having sex during ovulation can increase your chances of getting pregnant, so if you’re preparing for pregnancy you can count your ovulation period and increase the number of times you have sex during ovulation. During ovulation and the onset of menstruation, hormone levels in the body will change, so it will be accompanied by lower abdominal discomfort, breast swelling and pain, leukorrhea, etc., only need to do a good job of daily care, do not need to carry out special treatment.