What could this be?

I have been with my boyfriend for 3 years, and the last 2 days when we had sex, I was bleeding afterwards..
It's not my first time, I've been sexually active for a few years, so I know thats not it. I'm not cheating on him, nor him on me. I am not currently menstruating.
The sex has not been different than usual.
Not alot of blood, but I am definately bleeding.. It's more 'pinkish' when I get cleaned up. (sorry to be so graphic)
What could be wrong?What could this be?
Definitely go get it checked out. It could be something serious such as endometriosis or something else. I'm no doctor and I can't tell you if that's what you have or not. But it does sound like something is wrong with what's going on with you. Go see your ob/gyn.
It could just be because your period is on the way. You've experienced "spotting: It should go away in a few days. But if it lasts more then say a week, with no period following, then you shuld consider seeing your doctor
It's hard to say. The best thing to do is go see a doctor (preferably an ob/gyn) and have them examine you to see what might be causing this.
I don't want to scare you, but bleeding after sex can be a symptom of cervical cancer (or a precancerous condition) so it's very important that you get this checked out soon.
stop trying to avoid the ob-gyn...just go. there is not way anyone here can diagnose your symptoms...whata waste of time when you could know by now what the problem really is!