"WAIT!!!! I KNOW I'M LATE BUT 50 MILLION INSTAGRAM FOLLOWERS!!!! SERIOUSLY YOU DON'T KNOW HOW MUCH I LOVE YOU!!" the 35-year-old captioned the post in excited shouty caps.
Kardashian followed the celebratory snap with a collection of photos from her recent Troop Beverly Hills-themed baby shower, including an adorable photo of a pajama-clad North peaking out from a miniature tent at the party.
Mom captioned the too-cute pic with "Our Troop Leader."
Yesterday was a big day for Kardashian, who presented legendary makeup artist Charlotte Tilbury with the award for Makeup Artist of the Year, at the first-ever InStyle Awards. The multi-hyphenate talent wore a crisp white Valentino gown that accentuated her pregnant curves, and a sleek ponytail for the occasion.