I took the planb one-step pill on monday and today, friday, i bled a little bit, i'm not supposed to be on my period until the end of the month. is this normal?

See details: My first question would be why did you take the Plan B on Monday and repeat it on Friday? If you had two episodes of unprotected sex, you should consider using an appropriate contraceptive. Plan B is not meant to be a contraceptive. Yes, you can get irregular bleeding after Plan B.

Plan B: Hi, plan B could cause some unexpected bleeding, also it could make ur period heavier or lighter, but remember although Plan B has a high success rate if it's taken within 24 hours of intercourse, but if u vomit within the first 2-3 hours of taking the pill the efficacy drops, so checking a pregnancy test is a smart thing to do. also it seems u need a solid birth control method, talk to ur MD.