We were playing yesterday, I touched her cilt, but I think that there was a semen

My girlfriend and i were playing with each other yesterday and i came in my pants and just a bit got in my hand after more than 15 minutes my hand was dry and wiped it on a cloth and i forgot about it and touched her clit again but not the vagina her next period should be on the 15th august is there a probability of het getting pregnant please need help