help please!!

Hey guys last night I was pretty itchy down there and it hurt to pee... this morning the itchiness was mostly gone and when I went to the bathroom it started to hurt again toward the end! Nothing like this has ever happened to me before and I'm pretty worried, what could it be?? Should I just wait and hope it resolves itself?
If it helps to know, I've never had any kind  of sex except for perhaps giving my bf head? But it was very brief and he didn't come so idk if that counts 😅 plus we're both virgins so I'm pretty sure it's not an std but of course I'm still worried about it 😅 any advice would be much appreciated 💙