so one day me and my boyfriend were having some fun and he ejaculated in my mouth but some of it went on his shirt and he reached down and accidentally touched it then went to the bathroom to wipe the semen on his shirt with toilet paper and then came back to change his shirt and then laid back down to finish me with the same hand that had the semen on it. did it wipe off with the toilet paper or did it dry by the time he came back to finish me? am i going to get pregnant?