Hello
Im a 19 male.

So two weeks I met up with a male friend to have unprotected sex, although we didn't have much intercourse (he performed a brief minute of oral, and I also penetrated but just the tip,i had a few thrusts but we didn't do much of that either), after that we stopped.

about 3 days ago I started noticing a burn when I urinate, today I noticed a discharge, but it wasn't coming out on its own, I would squeeze it out, I remember it started happening after a one day of masturbating about four times

I know this might be a dumb question but considering the fact that I barely had intercourse with my friend, but is there any chance that this might NOT be an STD? I'm really scared.

I have immediately notified my parents.