Ok, I think some people are making assumptions about my relationship tat are totally wrong:
1. I don't have anything against roman catholics. I was citing the fact that a strict religious household usually has problems with pre-marital sex.
2. I am positive that she is fine with sex, because we've talked a lot about it (in fact, after she had her period and we were both relieved, we had a long talk, and she wanted to make sure that I was alright with still having sex, because she didn't know what my feelings were after that scare).
3. Sex is not the only thing we do when we're together. In fact, it's pretty far from it. If I only was interested in sex, there is no way my relationship would have lasted this long.
4. We didn't start screwing right when we met each other. I know some adults find this hard to believe, but not all teenagers are as promiscuous as MTV would have you believe.
I've thought a lot about it, and I think I am over-obsessing about this due to a lot of other crap that's been happening in my life, mostly friend, family, and final exam related. There's also the fact that I basically didn't know anything about the menstrual cycle, other than the fact that a woman has one. However, I researched and learned a lot from this whole thing. This is sort of a follow up, in case any other scared guy with a situation similar to mine finds this forum.