Sex hurts????


I got a UTI about 2 months ago. I went to the doctor and got antibiotics for it. Everything’s all good now. But whenever my boyfriend and I go to have sex, when he puts it in, it really hurts. He starts slow and the feeling will go away within seconds. But I’m not sure why it hurts so much briefly. Even today, about 7 hours after we had sex, I just randomly started bleeding. I’m not expecting my period until another 2 weeks. Anyone have a clue what’s going on??? :(