Michael Phelps and Wife Nicole Expecting Baby No. 4, with Their 3 Sons to Become Big Brothers

Nicole announced her pregnancy on Instagram with a baby bump photo

Michael Phelps and his wife Nicole Johnson are expanding their family again!

The parents of three boys are expecting their fourth baby, Johnson, 38, announced on Instagram in an anniversary post on Monday.

The pair — who have been married since 2016 and share sons Boomer, 7, Beckett, 5, and Maverick, 3 — posed for a photo at a recent NFL game where Johnson put her baby bump on display.

The soon-to-be 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, 38.

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

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Related: Michael Phelps Gives Fans a Glimpse into His Whirlwind Weekend with His Wife and 3 Sons — See Photos

The collection of photos, as Johnson wrote, featured seven years worth of memories from the exact date of Oct. 29 — from family portraits to nature walks as a couple to their Mexico wedding ceremony that signified the start of their growing family in October 2016.

"Happy Anniversary to my best friend, hubby and partner thru life ❤️," she wrote. "I couldn’t have asked for anyone better!"

In the cover image taken at State Farm Stadium in Arizona, Johnson showed off her bump as she wore a Baltimore Ravens jersey with her husband by her side.

The post comes a month after the Olympian uploaded an Instagram carousel of his own, which featured images of himself and his wife on the sidelines of a USC game, as well as a shot of them with their children in front of a Paw Patrol movie poster. “What a weekend!!!” he captioned the post.

Phelps and Johnson first met in 2007, and have since celebrated several milestones as a duo. In 2022, they toasted the first day of school for two of their little ones. "First Day of Kindergarten for Booms and First Day of Pre-K for Becks at the same school 🥰🥺 #theyregrowingup," Johnson captioned an Instagram pic.

Related: Who Is Michael Phelps' Wife? All About Nicole Johnson

When Phelps was inducted into the U.S. Olympic and Paralympic Hall of Fame last June, his family came out in support, too. Their three sons were in attendance, wearing matching black suits, white polo shirts, and white sneakers.

"What a night!!! Humbled and honored to be inducted to the United States Olympic and Paralympic HOF," Phelps wrote on Instagram following the ceremony.

"Thanks to all who voted for me🙏🙏Congrats to my other classmates. Class of 2022!!!"

In 2021, Phelps and Johnson opened up to PEOPLE about parenthood, as Phelps explained how his sons "talk about their emotions."

"It gives me a lot of hope. I just want them to be as prepared as they can be," he said at the time.

"We don't hide from emotions," Johnson added. "We teach them that daddy or mommy is having a moment and we need to either give them space or ask if they want a hug. And that's taught them they have permission for their feelings to be heard too."

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