If your girlfriend does'nt get her period she needs to take a pregnancy test. The chances of her being pregnant are almost nonexistent though.
It was 2 days then she had her period
There is almost no chance of pregnancy. When is your girlfriend due for her period?
With a small amount of pre ***
What if i didnt went inside with my finger i just touched and rub her vagina
There is a very small chance. Sperm does not live long outside of the body but if he touched his self and then touched you immediately after then there's a very small chance.
If this happens again make sure your boyfriend washes his hands before touching you. This best anyway to keep you from getting an infection. He should touch his self first either.
I think you're alright and not pregnant. The chances are just so very small.