I am 17 years and I had unprotected sex back in January. He did not ejaculate in me. Since my period in April I have been having a vaginal itch that just does not want to go away. It's on the outside of the lip. I now have a brown discharg, and I was having white, clumpy discharge before. I've read that it could be a yeast infection or dermatitis. I had my last period 2 weeks ago and I'm not expecting again until the beginning of June. My boyfriend did not have an STD so I don't know what this could mean? I only wear cotton underwear and I have to wear pantyhose and tights everyday. Can anyone help?