If you and your partner are sexually active, it is important to take steps to avoid unwanted pregnancy.
There are two different types of emergency contraception pills:
- Levonelle Pill. The Levonelle pill is so-called because it contains levonorgestrel, a synthetic variant of the hormone progesterone produced within your ovaries. They work by stopping or delaying ovulation. This pill needs to be taken within 72 hours after unprotected sex.
- ellaOne Pill. The ellaOne pill is a morning-after pill that differs from Levonelle by containing ulipristal acetate instead of levonorgestrel. Ulipristal acetate is a progesterone receptor modulator which inhibits the hormone’s function to stop or delay ovulation. The ellaOne pill is still effective when taken up to five days after unprotected sex, but is not effective is ovulation has already occurred.