Precum debate cross posted

So me and a couple of friends on Facebook are having a debate about ways to get pregnant. So I suggested that you will get pregnant if the man lets off in you quicker than you will if he pulls out. I mean duh right? So a friend commented and said you have about the same Chan es of getting pregnant regardless to if he pulls out or if he stays in. Now I’ve been having sex with this one guy for 3 years and he ALWAYS pulls out and I haven’t been pregnant at all. So I don’t believe that at all. I don’t know tho. What’s are y’all takes on it? Like have any ladies in here ever been pregnant off precum?