Emergency contraceptive pills, if taken within three days of intercourse, have a success rate of 63%-90%, and the earlier the pill is taken, the more effective it is.
Emergency contraceptive pill is an “emergency” remedial measure after unprotected sex, or contraceptive failure (such as condom rupture, slippage, omission of contraceptive pills, safe period calculation error), to prevent unwanted pregnancy and reduce abortion.
Emergency contraceptive pills are high in hormones and have many side effects, including menstrual cycle disruption, mild nausea, vomiting and other symptoms in the same month of taking the pill, and long-term use of the pill can cause sex hormone disorders.
In order to minimize the harm to the body caused by repeated use of the pill, a more secure way of avoiding unwanted pregnancies can be achieved through condoms, short-acting contraceptive pills, intrauterine devices, and implants embedded in the skin.