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Michael Phelps and Wife Nicole Welcome Baby Boy No. 4: 'We’re Now a Family of 6!'

Nico Michael Phelps was born on Jan. 16

<p><a href="https://www.instagram.com/boonestudios/">Boone Studios</a></p> Michael and Nicole Phelps with their new baby

Boone Studios

Michael and Nicole Phelps with their new baby

Michael Phelps and Nicole Johnson's family has grown!

The Olympic swimmer, 38, and his wife have welcomed their fourth baby boy, the couple confirmed with a joint Instagram post Monday.

"@mrs.nicolephelps and I wanna welcome Nico Michael Phelps to the world. Born on 1/16," Phelps captioned the post, which included a picture of the couple with Nico in Phelps' arms.

"We’re so blessed to be given a 4th child," the caption continued. "We’re now a family of 6! 😁😁🤪😂."

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<p><a href="https://www.instagram.com/boonestudios/" data-component="link" data-source="inlineLink" data-type="externalLink" data-ordinal="1">Boone Studios</a></p> Michael and Nicole Phelps with their new baby

Boone Studios

Michael and Nicole Phelps with their new baby

Related: Michael Phelps and Pregnant Wife Nicole Pose with Their Three Sons as They Celebrate Thanksgiving

The parents of four boys announced on Instagram that their family was growing yet again in an anniversary post shared earlier this month.

The pair — who have been married since 2016 — posed for a photo at a recent NFL game where Johnson put her baby bump on display.

The mom of four shared the Instagram post to celebrate the couple's new addition, as well as her seventh anniversary with the Olympic champion swimmer.

"For those that are wondering… yes! we’re expecting our 4th Phelps in 2024 💙💙💙💙," Johnson wrote alongside the carousel of images

<p>Michael Phelps Instagram</p> Michael Phelps and Nicole Phelps with their kids, Boomer, Beckett, and Maverick

Michael Phelps Instagram

Michael Phelps and Nicole Phelps with their kids, Boomer, Beckett, and Maverick

The parents are very happy to have a house full of boys. Johnson especially enjoys the dynamic and the family refers to her as the "queen of the household."

"I think Nicole said something along the lines of, like, 'I'm so lucky to have a house full of boys and no girls,' and Boomer looked at her and said, 'Mommy, you're the girl in our house.' So we've been saying that and it's true, she's the queen," Phelps has said of Johnson.

The 23-time Olympic gold medalist met his now-wife in 2007 at the ESPY Awards, and they connected right away. At the time, Johnson was a pageant competitor and model, who would go on to become Miss California USA in 2010, and even place in the top 10 of the Miss USA finals that same year.

After dating on and off for a few years, the couple got engaged in 2015, and later wed in 2016, holding three separate ceremonies.

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