Bleeding during sex?

My boyfriend and I were on our second time of trying to do penetrative sex. The first time hurt a bit but had to stop cause of no lube. It bled a little bit which was understandable. We tried today a second time and had lube, but while it did go in easier it hurt a lot more. I had to get off him and we noticed a little more blood, I tried to put more lube in my vagina but I kid you not it was like a murder scene when I took my hand out. I’m skeptical if it’s my period or not because I had it two weeks ago. Has this happened to anyone else?