Saint West has a lot in common with his big sister and his cousins … that’s besides DNA.
TMZ obtained a copy of the little guy’s birth certificate, which was filed with L.A. County on Friday. Not a lot of shocking details — no middle name, and it was signed last Monday … 2 days after his birth.
He was delivered by Dr. Paul Crane, who also welcomed North … and all 3 of Kourtney’s kids. Best of all … he even pulled Kim outta Kris Jenner 35 years ago!
The guy knows his way around a Kardashian hoo-ha.

– Tmz