uhh normal?

So I went out this morning (1-3) and had sex with a dude and it was great and everything. But when I woke up this morning it had looked like I was spotting... which isn't the case because it's not the time for my body to spot and I just got off my period a week or so ago. I've only bled once from sex, during, and it was just because I was coerced and not comfortable. I've had about three partners after that, not including last night, and have never had any bleeding issue... is this normal? Is there a reason I'm bleeding a quite a bit?