WHAT I THOUGT WAS YEAST INFECTION? HELP

So i went to doctors about 3 weeks ago because for about two weeks i thought i had a year infection or bladder infection. I was having thick white discharge and it burnt to pee the odd time and it smelt odd. I got both medications in case i had them both. I finished them and now i’m still getting the symptoms a bit i think it’s more a yeast infection. But now the discharge just today is like a browny or darker idk diesharge colour and i have no idea why. I’m not supposed to get my period for another week. I’m on BC and me and my boyfriend are unprotected. Never had this problem before and we have been together for almost 2 years. I’m going to call my doctor again and see but right now anyone think anything? Please help!