What are the chances of getting pregnant when getting pre-ejaculation on your hand then wiping it on your shirt as much as possible then not even fingering your girlfriend just touching the clitoris?

Well bearing in mind sperm can travel through liquids so touching with pre-cum there is always an incredibly low chance in fact nothing to none. I wouldn't be worrying because getting pregnant from pre-cum is just a possibility it might not even happen, just a theory which in some cases can happen. If you actually got sperm all over your hand didn't remove it or wash it and then touched your girlfriend or fingered her then there is a chance. but in this case im very 99% sure that nothing will happen.

Hope this helped. But just remember that the chance is there and and even condoms are only 99% effective.