According to WHO, a copper-containing intrauterine device is the most effective form of emergency contraception with a 99 percent success rate if inserted within 5 days after unprotected intercourse. It prevents pregnancy by causing chemical changes in the sperm and egg cells before fertilization occurs.
An IUD is also generally safe; reports say that less than 2 cases of pelvic inflammatory disease take place per 1000 users. Moreover, you can choose to leave it inside your uterus to serve as your primary birth control method.
Likewise, IUD is the preferred form of emergency contraception for women weighing more than 70 kilograms.
Another emergency contraception method besides morning-after pills and copper IUD is the Yuzpe method or the combined oral contraceptives (COCs). In this method, you need to take several oral contraceptive pills in two doses, 12 hours apart.
The extra contraceptive effects cause a surge of hormones that can lead to side-effects such as dizziness, nausea, vomiting, and irregular vaginal bleeding. In case you vomit within 2 hours after taking COCs, you need to repeat the dose.
The Yuzpe method is best done under your doctor’s supervision. They will guide you on the types of oral contraceptives and their doses. To be effective, you must take COCs within 5 days after unprotected intercourse.
An emergency contraception pill prevents unwanted pregnancy after unprotected sexual intercourse. However, morning-after pills are not available in the Philippines. The best options so far are copper IUD insertion and the Yuzpe method.
Learn more about Contraception here.