I had sex with about 2 weeks ago and a week after doing it my pelvis has been really itchy off and on. I shaved my hair thinking its causing me to itch but I still get a itch every now and then. I used a condom when I was with her and I didn't see any sores or anything on her. I was tested a month ago and everything was negative before this incident. Is it possible something could have been passed or just a irritation.