I am 19 years old, 5'7", 140 pounds. Iv'e noticed that after sex, my skin feels irritated and sometimes I bleed a little. Not much at all, I may just notice a little after I wipe in the bathroom. I don't feel too concerned that it is an STD because I was just tested. I think my skin gets irritated and I may get a few abrasions during sex. Is there anything I can do to stop this? Because I can't really have sex more than twice or so in a row because my skin feels raw and irritated.