We had sex for the first time and i had a condom on and everything but we were still worried that she could be pregnet so I bought the plan b pill and she took it. 6 or 7 days later she recieved her peroid but it only lasted for 3 days. We recently had sex 2 weeks ago and she was really worried agian, i used a condom also that time but i still got the pill and she took it. Would the plan b pill mess up her period or could she be pregnet? She should get her period very soon but we're both worried that she is pregnet? Help here....please