Bleeding after sex?

This has never happened to me before...but my boyfriend and I had sex two nights ago. It was very aggressive, it wasn't painful at first but when we started getting more and more intense, it DID start hurting but I didn't want to stop. 
I started lightly bleeding afterwords. Then throughout the day, kinda light bleeding. Now, this morning, when I went pee, there was still light bleeding. 
Is this normal? Could I have started my period a bit early or something?