Me And My Boyfriend Had Sex For The First Time

Me and my boyfriend had sex for the first time ever last Friday. We used protection, and the condom DID NOT BREAK though it was expired. I am also on birth control, and missed a pill earlier that week. Yesterday though, I started spotting. It was varying between a vibrant red or a some what dark red (not brown though). He was the first time I had sex with in nearly two years. And the other times my hymen did not break. The sex was a little rough though. I felt sick last night and threw up with morning along with diaherra. and I am also stressed out because of school. I am 16.


I am wondering, what is going on? Am I spottinf from the sex? Is it implantation bleeding or breakthrough bleeding?