Hello!

On December 31, I gave a guy a ha****b, and about 30 seconds after he came, he lightly fingered me. By fingering, I mean he just lightly touched the opening of my vagina and vulva, but not for that long. No fingers were entered into me. He still had a bit semen on his fingers, but it was semi-dry (a little bit sticky, but not really wet anymore). 

Could I be pregnant? It's January 4 today. My periods are always irregular, but they usually come in the beginning of the month... I'm not on any birth control. 


I've read that it's impossible to become pregnant this way, but I've also read from other websites that it's definitely possible. Please help me. 

Thank you so much to all who answer.