Are these health things from sex normal?

okay I’m 19 my boyfriend and I frequently have unprotected sex (we’ve been together for three years well almost four) when we have sex I sometimes get a sharp pain in my right pelvic area(near rmy hipbone and usualy when I’m on top) he doesn’t have a hook or anything so that’s not it. And I’ve been frequently getting uti’s I do drink a lot of soda which is what my mom said is causing it but I’ve laid off of it a bit and it’s helping. but I also think I’m getting some swelling after sex and I’m not sure if thats normal or not and I’m getting really red, is that normal?? also if he “goes” in me then the semen comes back out usually when I laugh or stand up for long periods of time. I’m not really sure if all of it comes back out but I think a good bit of it does possibly.. that’s the part I really need to know if it’s normal or not PLEASE HELP ME I’ve been wondering this for about a month now and I don’t have health insurance some kind of guidence would be great THANK YOU