No seriously, I kind of need like, professional doctor's opinion on this, it's kid of urgent
You should probably call a dr then.... You can't get pregnant from fingering someone
No you need to take sex Ed Class and stop messing around until your educated on sex .
It is not physically possible to get pregnant from what you described.
In the future you should consider always wearing a condom for anything intimate that you do for piece of mind. Plus you'll already be protected then in case you get carried away and end up going farther sometime in the future.