Bleeding after rough sex? abdominal pain?

I had sex with my boyfriend last night and it was quite rough and lasted a lengthy amount of time. I discovered I was bleeding this morning and although the bleeding has slowed down it is still leaking. I also recently took the morning after pill where I was warned that there may be some spotting as a side effect however the blood consistency is more than just spotting and slightly different to period blood where it is more diluted and watery. I know it isn't my period as i just finished my last period a week ago and am not expecting my next period for another 2 weeks or so.