i had unprotected sex with my girlfriend on the 17th but a didnt cum on her, now she is supposed to have had her period on the 19! is there a possibility that she might be pregnant!? help out she is freaking me out!
It is definitely a possibility. Are you positive that you got no cum inside of her? If you are, then the possibility is lower. Unfortunately, precum also has some sperm in it (sometimes) so there is still that risk.
Has she had her period yet?