Photo: Kim Kardashian West/Instagram; Inset: Bryan Bedder/Getty

Psalm West https://www.instagram.com/p/BxlHCNQgSNJ/ Kim Kardashian West/Instagram NEW YORK, NY - SEPTEMBER 09: Kanye West and Kim Kardashian West attend Harper’s Bazaar’s celebration of “ICONS By Carine Roitfeld” presented by Infor, Laura Mercier, and Stella Artois at The Plaza Hotel on September 9, 2016 in New York City. (Photo by Bryan Bedder/Getty Images for Harper’s Bazaar)

Kardashian fans are about to beKeeping Up withone more family member: Psalm West!

“Beautiful Mother’s Day with the arrival of our fourth child. We are blessed beyond measure. We have everything we need,” the message read.

Kardashian West, 38,announced the birth of her sonvia surrogatelast Friday, tweeting excitedly, “Here’s here and he’s perfect!”

The new mom of four — who also shares daughters Chicago, 15 months, and North, 6 next month, plus sonSaint, 3, with West, 41 — followed upa few minutes later with, “He’s also Chicago’s twin lol I’m sure he will change a lot but now he looks just like her.”

“Kim and Kanye were both present for the hospital birth on Thursday,” the insider further revealed. “They are ecstatic. Their little boy is super cute and looks like Kim.”

Along with quite the brood — her three children (Reign Aston, 4,Penelope Scotland, 6½, andMason Dash, 9) plus Chicago, Saint and North — Kourtney, 40, brought the news that Kardashian West’s surrogate would be giving birth shortly, explaining why her sister wasn’t on the show as planned.

Kim Kardashian West/Instagram

https://www.instagram.com/p/BrQcEVmnwyI/Kim Kardashian West/Instagram

RELATED VIDEO: “He’s Here!”Kim KardashianandKanye WestWelcome Son: “He’s Perfect”

PEOPLE confirmed on Jan. 2 that the couple wouldwelcome a sixth member to their brood. During the Jan. 14 episode ofWatch What Happens Live, Kardashian West confirmed the pregnancy news herself afterAndy Cohenasked if she was “working on another child.”

“It’s a boy, I think it’s been out there,” Kardashian West told the host. “I got drunk atour Christmas Eve partyand told some people. I can’t remember who I told because I never get drunk.”

Multiple sourcespreviously confirmed to PEOPLEthat the couple’s fourth child would be a son.

Kanye and Kim Kardashian West.Rich Fury/Forum Photos via Getty

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Kim Kardashian Instagram

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In April, theKUWTKstar shared that while she had initially wanted to find an Armenian name for the couple’s second son, she hadn’t found anything she felt great about yet.

“My brother approved it, so that’s like our one kind of name,” she continued, before admitting she still had her reservations about the choice as it was very differentthan her other children’s names.

Rob Kardashian and Kim Kardashian West.Larry Busacca/Getty

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Although there were clearly many options on the board, Kardashian West zeroedin on a note on the wallthat was suggesting “Robert Harut.”

The note went on to reveal that “Harut” is an Armenian word, meaning “he has risen” — and as Kardashian West had previously indicated that she was into the idea of naming her son Robandfinding an Armenian name,the choice seemed like a perfect fit.

source: people.com