I'm 16 and I've been thinking about having sex with my girlfriend for awhile now: she is ready, I'm still deciding but I think I will with her eventually when I'm ready. When we do there is no doubt in my mind that I will use a condom and I already have one but I really dont know much about them because everything I hear from programs at school or whatever is don't have sex, sex is bad, you're not ready, etc. I never hear anything about having sex but with a condom really I know there is a chance of the condom breaking but exactly how big of a chance are we talking about here because a 10% chance and a 90% chance are two totally different things. Also is there a way for her to get pregnant if the condom doesn't break? I don't know how that would be possible but that's why I'm asking because I don't know, also can stds be transmitted while using a condom even if it doesn't break?