North, Saint and Chicago! The name of Kim Kardashian and Kanye West’s daughter was revealed on Kardashian’s website on Friday, January 19.

Chicago was born via surrogate at 12:47 a.m. PT on Monday, January 15, weighing in at 7 pounds, 6 ounces. She joined Kardashian and West’s daughter North, 4, and son Saint, 2.

Happy Holidays A post shared by Kim Kardashian West (@kimkardashian) on Dec 29, 2017 at 8:46am PST

“Kanye and I are happy to announce the arrival of our healthy, beautiful baby girl,” the Keeping Up With the Kardashians star, 37, wrote on her app on Tuesday, January 16. “We are incredibly grateful to our surrogate who made our dreams come true with the greatest gift one could give and to our wonderful doctors and nurses for their special care. North and Saint are especially thrilled to welcome their baby sister.”

Us Weekly exclusively revealed in July 2017 that the couple were expecting their third bundle of joy via surrogate. Kardashian confirmed the news that September in a trailer for her family’s E! reality series. “We’re having a baby!” she gushed during a FaceTime call with her sister Khloé Kardashian, who is also expecting.

In the weeks leading up to the baby’s birth, a source exclusively told Us that Kardashian and the “Famous” rapper, who was raised in Chicago, hadn’t picked out a name yet, but were “both so excited for their little girl to arrive.”

The reality star and West, 40, tied the knot in Florence, Italy, in May 2014.