Pull out method?

So obviously you can get pregnant from the pull out method bc of precum. Precum can get you pregnant bc it contains sperm. But it is typically flushed out when a guy pees. So if my dude doesn’t nut that day or the day before and pees throughout the day and we have sex at night and decide to say fuck it and go raw but obviously pulls out and cums on my stomach, how possible is it to get pregnant?