Emergency contraception, as its name suggests, offers protection against unwanted pregnancy in the case of unprotected intercourse. Emergency contraception is usually effective if taken up to 72 hours after sex. The more time passes, the smaller its efficiency is.
This type of contraception is hormonal. Medics started considering such types of contraception in the 60s of the past century but the combination of hormones produced serious side effects and the medications were even carcinogenic.
The second type of emergency contraceptives contains progestin and estrogen. These emergency contraceptives diminish the risk of pregnancy by 75 percent and resemble the composition of traditional oral contraceptive pills.
Since emergency contraception interferes with natural bodily functions, taking the pill can lead to a number of side effects.