Ovulation does not usually occur the day after the end of the withdrawal bleed, and usually occurs around the 14th day after the withdrawal bleed if you normally have a very normal period. Bleeding that occurs after stopping the pill is called withdrawal bleeding, usually after taking the pill or progesterone, and is similar to the onset of menstruation; ovulation may occur around day 14 of withdrawal bleeding. Withdrawal bleeding is bleeding caused by the artificial application of medication to control it, so it can affect ovulation and lead to menstrual disorders, and the timing of ovulation cannot be determined. If you want contraception or pregnancy, you need to detect the time of ovulation by ultrasonography, or applying ovulation test paper, and generally there is a relationship between ovulation and follicular growth. After withdrawal bleeding, it is recommended to pay attention to hygiene and change underwear frequently. If the withdrawal bleeding exceeds 7 days or the amount of withdrawal bleeding exceeds the normal amount of menstruation, it is necessary to go to the gynecological clinic in time for relevant examinations, ultrasound or sex hormone six tests to clarify the specific causes, and then according to the results of the examination for symptomatic treatment.