So I started taking birth control about a week and a half ago, on the first day of my period. I had unprotected exactly a week after I started bc after my period was over and had so light spotting during sex. Now I have this discharge and I’m a bit itchy down there, there’s no weird smell, my pee is clear is just when I wipe that I see this.me and my s/o are negative for any std.Could someone help? Could it be just old blood??