Two days ago, my boyfriend and I had sex, protected. Later that evening (5 hours later) we were messing around, he did not finish, but there was contact and he did go in. That was not protected. It wasn't for more than 25 seconds honestly. I am beginning to worry that there is a chance that the previous sperm cells might have still been around. He did pee at least once or twice in the 5 hours before. I have taken Plan B once before and am considering taking it once more. The side effects weren't bad. I was confused about my period for a while but it's a small price to pay compared to a child. I am looking for guidance or help or courage and a pal. I suppose the question is: should I take Plan B, or am I in the clear?