The newborn boy is their second child born through surrogacy, following big sister Chicago, 1.
Though Chicago and brother Saint, 3, were too young to understand they had a new brother on the way, Kardashian-West shared with ET in January that North, 5, was very much looking forward to the addition.
“They are excited,” Kim said. “I mean, I don’t know if they don’t feel it as much because they don’t see my big belly and probably hear me complaining every two seconds. But, we do talk about it a lot, so I think they are really excited. I think my son, I don’t know how he is going to react because he doesn’t get it yet, but my daughter is really excited.”