My boyfriend rubbed the outside of my vagina the other day and afterwards i gave him a handjob. he ejaculated on my hand and i wiped it off on my pants so that they were completely dry. Later that night, about an hour or so later, i just used my finger ( on the same hand he ejaculated on) and kind of wiped off some wetness around my vaginal lips, forgetting i hadnt washed my hands. I DID NOT STICK MY FINGER INSIDE MY VAGINA, STRICTLY AROUND THE INSIDE OF THE LIPS.I have heard sperm cant get you pregnant unless it is wet, but is it possible to get pregnant from this or am i just overthinking?