Levonorgestrel
"Hey ladies. So with my husband, I had used plan b a couple days ago, about 15 hrs after. Now I'm not going to know quite yet wether it works til I'm due for my period around the 20th of July.. but I'm not too concerned as Im not ovulating quite yet. And the only side effect, still is off and on nausea. But I see some people saying the pill won't work. Some insight.. if Ur ovulating, and have unprotected sex, u obviously have a high chance of pregnancy. With or without this pill. If you read, this pill is supposed to postpone/prevent ovulation so u can't become pregnant. Therefore, if u do have sex while ovulation, and want to take the pill, it's risky, but should be taken right after, otherwise may not work. Just a suggestion :)"