i have been on birth control for almost 2 months now. and for a while i have had discharge before i got on it and before i first had sex. i went to the doc. and they wanted to test some discharge on something, it was a std name. but i know thats not what it is because i have had it before i had sex for the first time. well they gave me some gel to help the discharge but it did nothing. and now i am bout a week before i am suppose to start my period and my discharge is brownish yellow looking with blood. what can this be? also i have been losing weight very quickly. i have already lost 10 pounds. could this be something major? i have a doc. appt. coming up, but i just thought i would post and see what some of you may think or know.