Question: does the morning after pill work before?
Answer: Levonelle contains levonorgestrel and has to be taken within 72 hours (3 days) of unprotected sex. EllaOne contains ulipristal acetate and is licensed to be taken within 120 hours (5 days) of unprotected sex. Both Levonelle and ellaOne are effective only if taken before the release of an egg from the ovary (ovulation).