I’m scared I’m pregnant

I’m a virgin.About a week and a half ago my boyfriend fingered me for the first time. I haven’t gotten my period yet, I was supposed to get it this past Thursday. I know what you’re thinking “you can’t get pregnant by getting fingered” but I read online saying that if there is any pre cum on the hands or finger tips before they are inside the vagina, you can get pregnant. I asked him if he masturbated before hand, and he said no. I’m still really scared!! What should I do? I need your help!!