Will she get pregnant?

I and my girlfriend had some cuddling 2 days ago. She also gave me a blowjob and my hand got wet with my semen. I wiped by hand on the bedsheet. After a few minutes I started fingering her.

Is there a chance that my sperm may have entered her vagina? I am reall worried about this. Can she get pregnant this way? How to check if everything is fine?

Please give me your advice.