Not that i know of. Bcuz if that was the case i should have been pregnant many times. So to answer your question no you can't.
please take some sex ed classes before you engage in anymore sexual activity!
unless there was pre-ejaculate (which is clear and not sticky) or semen on his fingers when he touched you, you're not pregnant.
I dont think you can get pregnant with just fingering. Relax, You need actual sperm to enter inside of you for a baby to be conceived. I think your ok.