By Sherry Huang
December 15, 2014
Kourtney Kardashian

Update: Kourtney Kardashian's third baby is named Reign Aston.

Looks like North West now has a new cousin! Kourtney Kardashian gave birth yesterday to her third child, confirms People. This is the second son and the third child for Kardashian and her long-term partner, Scott Disick.

The eldest Kardashian sister (and baby clothes designer) also gave birth on the same day as her first son's birthday. The big brother, Mason Dash, turned 5, and received a little brother as a birthday (and early Christmas!) gift. Penelope Scotland, 2, completes the trio.

No name has been released yet, but Kourtney admitted to E! News in October that she and Disick were having difficulty thinking of a name and were waiting for their child's birth to decide. Kourtney revealed her baby's gender earlier this month on an episode of "Kourtney and Khloe Take the Hamptons," and she talks about her favorite family holiday traditions in the current December/January issue of FitPregnancy.

There's no doubt Kourtney is an amazing mom and will continue being one. On Mason's birthday, she shared a photo of him on her social pages, along with the sweet message, "Happy birthday to the coolest little boy in the entire world. You teach me so much every single day and changed my universe the second I met you. You have taught me what life is all about and I am truly blessed and honored to be your mommy."

In a 2012 interview with, Kardashian shared that being a mom was her "favorite role in life. It has changed me and made me realize there is nothing else I would rather do with my time. Being a mom is what life is about. I hope people realize what the priorities in life should be and know not everything has to be perfect."

Congratulations to Kourtney and Scott!

Still need to buy baby clothes? Download and print our free baby clothes wish list to figure out what you need for the year.

Sherry Huang is a Features Editor for who covers baby-related content. She loves collecting children's picture books and has an undeniable love for cookies of all kinds. Her spirit animal would be Beyoncé Pad Thai. 

Image: Kourtney Kardashian via Shutterstock