WATCH: Kim Kardashian Forgot to Tell Scott Disick That She Was Having a Third Baby

Scott Disick is feeling left out of a loop.

On Sunday’s arriving part of Keeping Up with a Kardashians, a father of 3 — he shares sons Mason, 8, and Reign, 3, and daughter Penelope, 5, with ex Kourtney Kardashian — learns that Kim Kardashian West is awaiting a third child — and is apparently one of a final people that are tighten to a Kimoji creator to know.

“I’ll be utterly honest. we don’t even know what this room is,” Disick, 34, says in an E! clip as Kardashian West, 37, guides him around an unprepared room in her home, that she was scheming for daughter Chicago, whom she welcomed Jan. 15.

“Nursery,” she tells him.”So like a small open tub, crib …”

A doubtful Disick asks, “For another baby?”

WATCH: Kanye and Kim Kardashian West Reveal Daughter’s Name Is Chicago

Still not bargain that she will shortly be welcoming a third child around surrogacy with father Kanye West — a integrate also shares daughter North, 4, and son Saint, 2 — Disick inquires, “Do we unequivocally consider we need to worry about redoing these cabinets if this is going to be a hothouse for a child that we don’t even have?” before directly asking, “Are we pregnant?”

Not bargain because Disick is presumably joking, Kardashian West says, “Is this a joke? Do we not know we’re carrying another baby?”

He tells her with a laugh: “Not really.”

“Scott, we’re carrying a baby in like a integrate of months. I’m passed serious,” she explains to a astounded Disick, who asks if she’s carrying.

“No I’m not,” she says. “We went a surrogacy route. we never had this review with you? we swear I’m not joking with you.”

Keeping Up with a Kardashians front Sundays (9 p.m. ET) on E!