Idk what this is (might be gross to some people)

So I had unprotected sex with this guy and he told me a few days after he thought he wasn’t clean. But then his test came back clean however, I’ve been having symptoms and I got tested as well. I’m waiting for my results but have already been treated. The problem is that I have this bump down there and it isn’t a pimple or an ingrown hair and it’s grown, idk what to do. Any thoughts?