Birth control pills and emergency contraceptives are not the same. There are many types of birth control pills, such as long-acting pills, short-acting pills, and emergency pills. If it is long-acting contraceptive pill, you can usually take one pill per month. If it is a short-acting pill, you need to take 21 pills for 21 days and 28 pills for 28 days. Short-acting pills not only provide contraception, but also regulate women’s menstrual disorders. The emergency contraceptive pill can only be used as a remedy for contraceptive failure and has very little effect on the body when taken occasionally. If taken regularly, the emergency contraceptive pill may affect the regularity of menstruation and may even affect future pregnancies. For contraceptive effect, emergency contraceptive pills are not as effective as long-acting contraceptive pills and short-acting contraceptive pills.