After Protected Sex Having Painful And Frequent Urination. UTI Or Sexual Infection?

I recently lost my virginity almost two weeks ago. After the second time my boyfriend and I had sex a few days later my bladder has been almost weaker than a new born baby. There have been times where the urge to pee comes suddenly and it feels like a gallon of water only for a drop or two to release and the feeling of having to pee intensifies, almost painfully. Each time we ve used condoms and Ive been on birth control for the past year...I m thinking it s a UTI but like I said we ve used a condom. I want to know what this is before I have sex with him again.