possible STD.. please read. I need advice.

okay. so my partner and I had unprotected sex in March. I never noticed anything off about his or is considering we were in a very dark room, nor did I feel anything when performing oral. so yesterday, may 30, I noticed a red bump on the head of his penis. I asked him about it and he told me he got that checked out 6 months ago and nothing was wrong. then proceeded to tell me that a friend hit him with a rock and caused it. I don't believe that, not the slightest bit. then he proceeded to tell me that he has a bump on his hand from when he was twelve and when he was hit. I told him it shouldn't be there on his penis and he freaked out. I'm getting tested for std's, already made the appointment. but he seemed mad earlier because I told him I didn't want to have sex until he was checked and everything was good. he told me he doesn't need checked because he was checked six months ago and his doctor told him nothing was wrong and it didn't look like an std at all. I don't believe him. I told him his doctor was an utter dumba** !! I'm so enraged that I may have some sort of std from him. what should I do? and what does that sound like to you guys? he said it doesn't burn, itch or anything. I noticed a couple of weeks ago that I had an odd odor coming from my vagina and a different discharge color. I should've got checked but I brushed it off as nothing. guess you learn the hard way!!