I Was Fooling Around With My Girlfriend. So The Scenario

I was fooling around with my girlfriend. So the scenario is somewhat like this: I had either semen or pre-ejaculate on my underwear..im not sure which one it was as it occurred naturally.But I think it was pre-ejaculate as it didn't come out as a ejaculation which I experience while masturbating.
So now,that fluid from my underwear made my jeans wet quite a bit and I was fingering my girlfriend. I had my pants on completely. Its jus that while fingering my hand just brushed through that wet part of my jeans before I entered my hand inside her vagina.
I did put my hand inside her vagina and not just over her clitoris.
Is there any chance she would be pregnant??
I'm worried as hell !!