Don't feel it

the past two times i had sex with my boyfriend, i didn't really feel a lot when he was in me. it gave me minimal pleasure and i'm not sure why. This is the first time this has happened to me. I may have a UTI i feel because i do need to use the bathroom frequently but that's my only symptom so i'm unsure. I'm going to the dr soon. Is there anyone who has gone through something similar with not feeling anything while having sex?