I need an opinion

so me and my bf were like you know making out and shit. i ended up getting on him and like grinding on him. he ended up pulling my pants and underwear down over my butt and my vag, but he still had his shorts and underwear on.

he made me get off bc he said his shorts felt wet but i put my hand there and it was just warm. so i got down and he like fingered me and when i went to go give him a hj, he saw two spots of precum on his shorts.

i’m 99% sure it happened when he was fingering me but if it was there when we were grinding, could it have gotten like in/on me and get me pregnant?