The Challenge’s Olivia Kaiser Is Pregnant, Expecting First Baby With Theo Campbell

Olivia Kaiser and Theo Campbell are gearing up for their new exciting mission: parenthood. 

The duo, who competed on season 40 of MTV’s The Challenge: Battle of the Eras in 2024, announced they’re expecting their first baby together. 

“Our sweetest little secret,” they captioned their joint July 7 Instagram post, which features a sweet photo of them holding Olivia’s ultrasound in a field. “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.” 

Theo and the Love Island USA star, who started dating last May after meeting on the competition series, also shared their “little adventure” will arrive sometime in December 2025. And true to their excitement, they already have an all-white onesie prepared for their bundle of joy.