No because 5-7 mins after the sperm would have dried out. Which then it is dead. If he would have fingered you immdeatly after then I would have to say yes there is a possiblity you could he pregnant.
Well, yes if he had ANY sperm on his finger then yes. Did you use a condom? Also, when you ejaculate you get sperm in your body. Did he finger you in the vagina? If so, you are more then likely to get preagnet.