So I needed the plan b pill. I took it at 7:20pm last night and your suppose to take the 2nd pill 12 hours later... well my alarm didn't go off at 7:20am because I set it wrong on accident... I just took it at 9:20am today... will it still work?

Ask the pharmacist. I studied though that the time frames they put on them are there for a good reason. This site may help you though, because I have never been on any of those pills, so I will guide you to this site. But you're better off asking a doctor, to be honest with you.

http://ec.princeton.edu/questions/late.html