Cherry Popping?

I just wanted to know if there could be a chance that you could still bleed after having sex after your first time? 
What I mean is, when I first had sex, back in 2014, I didn't bleed, didn't feel different at all. About a month ago I had a one night stand and I bled for a week straight. Then last week I had sex with my now bf, and I bled for a few hours? Is this normal?