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The two forms of emergency contraception are levonorgestrel (commonly known as Plan B) and the intrauterine device (IUD). Levonorgestrel is a progestin that can be taken orally to prevent pregnancy after unprotected intercourse or contraceptive failure, such as a broken condom. It is most effective when taken as soon as possible after the event, ideally within 72 hours, but can be used up to 5 days later.

On the other hand, the intrauterine device (IUD), particularly the copper IUD, can be used as emergency contraception as well. It can be inserted by a healthcare provider within 5 days after unprotected sex and is highly effective. The IUD not only prevents fertilization but can also prevent implantation of a fertilized egg.

Other options listed do not specifically represent emergency contraception methods. Oral contraceptives and patches are standard birth control methods, not designed for emergency intervention. Similarly, birth control pills and cervical caps are utilized for regular contraception rather than emergency situations. Lastly, implant and injectable contraceptives are long-term methods and are not intended for immediate post-coital use, distinguishing them from emergency contraceptive options. This makes the identification of levonorgest