Students can use the pill to delay menstruation if it coincides with the time of menstruation during the college entrance exams. However, if there is no abnormal feeling when you come to menstruation, you should not delay it in general because if you take the pill to delay it, it will disrupt the normal menstrual pattern. If you have menstrual cramps or general discomfort when you have your period, this is the time to take it. Taking the pill can be started on the fifth day of menstruation, until the end of the examination, stopping the pill can be, after stopping the pill 3-5 will come to menstruation, must be a short-acting oral contraceptives, the body does not have a great impact, and will not disrupt the menstrual cycle.