HELP

MALE and FEMALE 18

my gf gave me a handjob while im still wearing my jeans and boxers on, and i precum inside my clothing. and then i check my jeans and felt a bit of moisture (which i believe from my precum) even if it is, it would be in unnoticeable amount of precum. and then i wipe my fingers gently in my shirt and after that i immediately finger her. is there any chance she could be pregnant?

ive seen a lot of information about sperm survival on skin and fabrics, some people say that sperm cannot swim through fabrics, but others say that it can. im just confused which one is true.