Interesting study on Pre-Cum

Dana • 👼👼👼👼🌈👧🏻 🤰🏻
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3564677/
Though it's easier to just google NCBI sperm content to get to the information. 
This was an interesting read about the possibility that some men leak semen during sex before ejaculation and others don't. If you're wondering whether or not you can get pregnant from Pre-Cum definitely read this it has a lot of good information with strong evidence.