Is Pregnancy Possible If I Ejaculated In My Boxers, Accidentally

is pregnancy possible if i ejaculated in my boxers, accidentally rubbed my finger across the stain very quickly, and then fingered my girlfriend? there was about a 5-7 minute gap in between me touching the stain and me fingering her. my fingers were dry and I could not feel any sperm on my finger. im just worried that even if I didn't feel anything on my fingers that there could be a chance that something could happen because my finger swiped across the wet stain on my boxers.