I am in my late teens and I'm sexually active. I have been for a couple years now and haven't noticed anything strange. Just recently, my boyfriend and I started having sex. We practice safe sex and use non- lubricated condoms.. I have never used this kind before but didn't notice anything different the first time we had sex. Last night we had sex for the second time and everything was going well. Soon, after about 30 minutes, I noticed it starting to hurt. I felt my vagina and noticed it was completely dry; something I have never had happen before. Also, my lips were swollen and it was hard to find my vaginal hole. I just really hope nothing serious is going on.. Any help?