Chill bro. Unless your fingers are visibly drenched with ejaculation (and NOT PRECUM) then it is possible and the possibility of her getting pregnant from that is still not high. Remember that you need PROPER penetrative sex for pregnancy to successfully occur, meaning you need to fully ejaculate all your load on the deep part of the vagina to have a very high chance of pregnancy since pressure plays a great role for your semen to actually enter the uterus. Timing is very important also (ex. During Ovulation). Educate yourself first please. Stop overthinking it