From what I know about condoms they are 99% effective but if you are worried go get a test at three and six months. I know this sounds scary but the Oraquick ones take like 20 mins and peace of mind is a good thing. I do want to say that you did have PROTECTED sex so please do not freak out. There are people who use condoms everyday and are fine. I have not read anything on here about someone contracting HIV through protected sex unless there was a slip or break or something wrong with the situation. Do not feel bad because you need to understand that you had safe sex and good for you! Abstince is the only way to be sure of not contracting anyrhing but condoms are known to be very effective or the health departments and every other place that deals with sex would not throw them in peoples faces if they did not work.