Could it happen, maybe, but that is a big maybe the likely hood of getting pregnant from that is REALLY low. Your clit is not involved with getting pregnant. Sperm needs to travel upwards towards the egg implanting into the uterus. sperm on the outside of the vagina is not likely to make it where it needs to go. Sperm does not live long outside of the body but it can live for a couple of minutes.
It's an extremely slim chance that you can get pregnant from sperm on a finger. There's no chance if it's on your clit. It's virtually impossible for a sperm to get from the outside of your body to inside. It's just too much work for them to get through your folds into the vagina and then have to swim up to the cervix.