Kim made the announcement, saying the surrogate gave birth Monday to a healthy girl weighing 7lbs and 6 oz.
Kim and Kanye used a surrogate (according to TMZ) because she has placenta accreta a life- threatening condition that created serious complications during the birth of her second child Saint.
“Kanye and I are happy to announce the arrival of our healthy, beautiful baby girl,” she wrote in a post titled ‘She’s Here!’
“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.”
The new addition makes five at the West household; she joins big brother Saint, 2, and big sister North, 4½.
“North and Saint are especially thrilled to welcome their baby sister,” Kardashian West adds.