Hey, no. This situation won't cause a pregnancy. First, you peed. That's not semen, man. Even if it looked funky. I mean, you were in the shower. Where there is water. Right? Think about that for a second and go ah haa. And regardless, if you masturbated and finished in a towel, a woman isn't going to get pregnant a few hours later by using the towel. Pregnancy is going to occur when a penis is in a vagina. So, no worries.