“Our sweetest little secret”: Olivia Kaiser and Theo Campbell share exciting baby news after ‘The Challenge’ romance

Olivia Kaiser and Theo Campbell have shared big news. They are expecting their first child together. The couple revealed their pregnancy on July 6, 2025. They wrote in an Instagram post:

“Our sweetest little secret … Our little one is arriving soon.”

Fans quickly learned that Olivia is about five months pregnant. Her due date is December 5, 2025. The couple chose a calm setting away from the public eye to share the announcement. Both Olivia and Theo are 33 and first met when they appeared on MTV’s The Challenge: Battle of the Eras in 2024. They made their relationship official about a year ago and have been together ever since.

How did Olivia Kaiser and Theo Campbell share the news?

On Instagram, the couple posted several warm photos. In one, they stand by a lake in a peaceful spot. Olivia Kaiser, wearing white, holds an ultrasound image, and Theo hugs her. Another photo shows a baby onesie with “coming soon” written on it. There was also a picture of a note that said: “Our little adventure begins December 2025.” Olivia confirmed on her Instagram Story that the due date is December 5 and that she is “just shy of five months pregnant.”

They captioned the post:

"We’ve been enjoying some time off the grid — embracing the quiet, the love, and the magic of what’s to come. Now it’s time to let you in on the journey… Our little one is arriving soon"

A look back at their journey

Olivia Kaiser became known to many as the winner of Love Island USA Season 3. Theo appeared on Love Island UK and later The Challenge. They started dating in June 2024 during filming for The Challenge and have remained together.

Olivia Kaiser has shared that Theo helps her feel confident. In a June 2024 Instagram Story, she said he “accepts and encourages” her to be “100% myself.” The couple met during The Challenge Season 40. Fellow castmates noted their strong bond. One said they even shared beds during filming as they looked for privacy.

What does this news mean to them?

This baby will be Olivia Kaiser's first child. For Theo, it will be his second. He has a son named Aries, born in 2021, with influencer Sapphire Yhnell. Theo reposted a tweet from Olivia, written in December 2023, that read:

“Babies are literally the biggest blessing. Working everyday to become the best version of myself to be the best mom ever.”

He added in his Instagram Story:

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“Congrats baby girl you’re gonna be the best mum (mom) ever.”

The couple has kept much of their private life out of the spotlight. But this happy news unites them both, despite their distance. They have grown close through shared trips and time together, and now, they are having a baby together.

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