Kim Kardashian and Kanye West welcome their fourth child

NEW YORK, NEW YORK - MAY 06: Kim Kardashian West and Kanye West attend The 2019 Met Gala Celebrating Camp: Notes on Fashion at Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Dia Dipasupil/FilmMagic)

Celebrity power couple Kim Kardashian and Kanye West have welcomed their fourth baby, after a surrogate gave birth on Thursday (9 May).

The couple have added another boy to their family, which consists of three other children, North, five, son Saint, three, and daughter Chicago, 15 months.

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Kim Kardashian at the 2019 Met Gala
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Kim Kardashian at the 2019 Met Gala
NEW YORK, NEW YORK - MAY 06: Kim Kardashian West arrives for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NEW YORK - MAY 06: Kim Kardashian West arrives for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NEW YORK - MAY 06: (L-R) Corey Gamble, Kris Jenner, Kim Kardashian-West, Kanye West, Kendall Jenner, Kylie Jenner and Travis Scott arrive for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NY - MAY 6: Kanye West and Kim Kardashian West attend The Metropolitan Museum Of Art's 2019 Costume Institute Benefit "Camp: Notes On Fashion" at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NY - MAY 6: Kanye West and Kim Kardashian West attend The Metropolitan Museum Of Art's 2019 Costume Institute Benefit "Camp: Notes On Fashion" at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NY - MAY 6: Kim Kardashian attends The Metropolitan Museum Of Art's 2019 Costume Institute Benefit "Camp: Notes On Fashion" at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NY - MAY 6: Kim Kardashian West attends The Metropolitan Museum Of Art's 2019 Costume Institute Benefit "Camp: Notes On Fashion" at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Sean Zanni/Patrick McMullan via Getty Images)
NEW YORK, NEW YORK - MAY 06: Kim Kardashian West arrives for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NY - MAY 06: Kim Kardashian and Kanye West seen out on the 2019 MET Gala day on May 6, 2019 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - MAY 06: Kim Kardashian and Kanye West seen out on the 2019 MET Gala day on May 6, 2019 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - MAY 06: Kim Kardashian and Kanye West seen out on the 2019 MET Gala day on May 6, 2019 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - MAY 06: Kim Kardashian West arrives to The 2019 Met Gala Celebrating Camp: Notes on Fashion at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by James Devaney/GC Images)
NEW YORK, NY - MAY 06: (EDITOR'S NOTE: Image was converted to black and white) Kim Kardashian West attends The 2019 Met Gala Celebrating Camp: Notes on Fashion at Metropolitan Museum of Art on May 06, 2019 in New York City.(Photo by Taylor Hill/FilmMagic)
NEW YORK, NY - MAY 06: Media personality Kim Kardashian attends The 2019 Met Gala Celebrating Camp: Notes on Fashion at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Ray Tamarra/GC Images)
NEW YORK, NEW YORK - MAY 06: Kim Kardashian West arrives for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NY - MAY 06: Kim Kardashian West is seen arriving to the 2019 Met Gala Celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Gilbert Carrasquillo/GC Images)
NEW YORK, NY - MAY 06: Media personality Kim Kardashian (L) and musician Kanye West attend The 2019 Met Gala Celebrating Camp: Notes on Fashion at Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Ray Tamarra/GC Images)
NEW YORK, NEW YORK - MAY 06: Kim Kardashian West arrives for the 2019 Met Gala celebrating Camp: Notes on Fashion at The Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Karwai Tang/Getty Images)
NEW YORK, NY - MAY 06: Kim Kardashian West attends The 2019 Met Gala Celebrating Camp: Notes On Fashion - Arrivalsat The Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Rabbani and Solimene Photography/WireImage)
NEW YORK, NY - MAY 06: Kim Kardashian West attends The 2019 Met Gala Celebrating Camp: Notes On Fashion - Arrivalsat The Metropolitan Museum of Art on May 6, 2019 in New York City. (Photo by Rabbani and Solimene Photography/WireImage)
NEW YORK, NEW YORK - MAY 06: Kim Kardashian attends the 2019 Met Gala Celebrating 'Camp: Notes on Fashion' at Metropolitan Museum of Art on May 06, 2019 in New York City. (Photo by Noam Galai/GC Images)
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The reality star announced the birth on social media yesterday (10 May), tweeting: "He's here and he's perfect!

"He's also Chicago's twin lol I'm sure he will change a lot but now he looks just like her."

The new arrival, which weighed 6 lbs, 9 ozs, was first mentioned by Kardashian in January, when confirmed she and West were expecting their fourth child during an appearance on Watch What Happens Live.

Like third child Chicago, the new baby was delivered by a surrogate, after doctors warned the star further pregnancies could be dangerous after she battled with life-threatening condition placenta accreta during a previous pregnancy.

She said on the show: "If the two doctors that I trust have told me it wouldn't be safe for me to get pregnant again, I have to listen to that."

In a recent appearance on Jimmy Kimmel Live, the 38-year-old was asked if naming the new baby, which is yet to be named, would be a family affair. She responded: "We all weigh in, I definitely take a family survey, but it's usually after the baby's born or I'm trying to figure out what the baby looks like.

"I usually go about three or four days nameless until I feel like it really connects."

Host Kimmel asked: "Do you have any choices right now? Do you have any you're thinking of?"

Kim told him: "I actually do not. But I was Googling Armenian boys names last night and I couldn't really find anything."

She added: "Actually I do have one name. I was truthfully thinking about just naming him Rob, my brother Rob, but then it's kind of like, North, Saint, Chicago, Rob, it doesn't really go?

"But I was really feeling that, and my brother approved it, so that's our one kind of name."

- This article first appeared on Yahoo

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