You can’t take the pill again if you’re not comfortable with it. Contraceptive pills are divided into short-acting, long-acting, emergency three kinds of contraceptives, including short-acting contraceptive pills from the onset of menstruation to take 21 consecutive days, eat a piece every day; long-acting contraceptive pills in the menstrual cycle of the 5th day, the 25th day of each take once, and so on the next cycle according to the same date as the second dose of medicine to take a pill; emergency contraceptive pills in the same period of 72 hours to take a dose of the same period of time. Whether it is short-acting, long-acting, or emergency contraceptive pills, it is not safe to take them again after taking them with a lot of side effects. Especially emergency contraceptive pills, the number of times a year can not be more than three times, such as eating an emergency contraceptive pills do not feel comfortable to eat again for a short period of time, on the ovarian endocrine, ovulation function are harmful, women will experience a variety of discomforts. It is recommended to take contraceptive pills need to be directed by a doctor, if you take short-acting and long-acting contraceptive pills according to medical advice, usually the contraceptive effect is still very good. Emergency contraceptive pills have the risk of contraceptive failure, but it is not recommended to take repeatedly within a short period of time, if the contraceptive failure to timely medical treatment to take drugs or surgery to terminate pregnancy.