Question: how effective is plan b the morning after?
Answer: A levonorgestrel morning-after pill like Plan B One Step, Take Action, My Way, and AfterPill can lower your chance of getting pregnant by 75-89% if you take it within 3 days after unprotected sex. You can take Plan B, My Way, and other levonorgestrel morning-after pills up to 5 days after unprotected sex.