Light bleeding after sex.

Hey everyone, just very confused on what's going on down there. My boyfriend and I had protected sex last night, even though the condom fell off alittle bit because he pre cums a lot, I don't believe I should have any pregnancy issues. However just now, the morning after, when I peed it hurt! And I bleed alittle. Any explanations? Also I know neither of us have stds 100%.