Expert Q & A Answers About UTI complications

I’ve only had sex once, but now I have a burning sensation when I pee. Did I catch an STD from my girlfriend?

I’ve only had sex once with my current girlfriend who has no symptoms of any STDs. I wore a condom and the sex was really brief. But now I have a burning sensation when I pee. I’ve been tested for gonorrhea and chlamydia, and both came back negative. Could my partner have given me something else?