We both cleaned up with paper towels, but there was this one paper towel that had a little bit on it

Sooo... Awkward question here. Earlier my boyfriend and I were kinda sorta messing around - not sex, neither of us is quite ready for that, we're both virgins - but you know, with our hands. Anyways, he had already came, and some got on my hand. We both cleaned up with paper towels, but there was this one paper towel that had a little bit on it that was accidentally left there for a while. Somewhere between 30 minutes to an hour later we were doing the same thing, but this time we both came. I was a dummy and forgot that that one paper towel had already been used a little bit earlier and used that one to kind of clean myself up down there. The paper towel was completely dry, but is there still a chance that I could be pregnant?