STD????

I had sex with this guy probably about 2 and a half weeks ago thinking we were gonna get serious but after the sex, he didn’t really text me back and left me on read. So whatever. Well tonight he texts me saying he’s got a bump down there. He says he hopes it’s just an ingrown hair. Now I’m fucking scared cause I mean I think I’m clean???? I’ve never been checked before but I don’t have any itchy ness or redness or absolutely anything. Everything always has been normal for me. Any advice??? Please don’t bash me I get what I did was stupid.