I was just wondering if you could tell me how long semen can survive outside of the human body. My girlfriend and I are worried that some semen got on her hand, around the knuckle area and about 5 minutes later she touched her vagina. I don't know if theirs a big risk of her being pregnant

Given proper conditions, it could live 5 minutes.

Unless inserted, sperm do not fly or crawl and it would have had to be inserted in.

I can not say there is no chance, since while there is almost no chance pregnancy happened from this, It would given the right conditions, happen.

So she will just have to wait a month and see if she gets her next period. This waiting is done by 100's of thousands of couples every month

Welcome to the adult world of having sex.