HELP VERY PARANOID

So my bf and I are very young, two weeks ago we were doing stuff. We dry humped with clothes on. I had thin exercising pants on and he had track pants on. I'm so paranoid I don't know why.

But there is no chance of pregnancy occurring right??? He didn't touch anywhere near my vagina or ejaculate near it. I'm just really scared because my pants were really wet afterwards but maybe that was just me but I don't think semen could go through track pants