ok, so i recently had unprotected sex with my new girlfriend. and the next morning i noticed redness and a little swelling on the head of my penis. I am uncircumsized so i think and hope it is just "rugburn". I know we are both clean but ive never ran into this problem quite this bad before. The foreskin at the tip is a little swolen and the head of my penis is red and pretty sore. does anyone have any ideas on what this could be? Thank you