"I only told a few friends and family so for most people will be massive surprise seeing this," the reality star says

Advertisement
Theo Campbell
Credit: Theo Campbell/Instagram

New dad alert!

Theo Campbell — known for stints on MTV's The Challenge and the U.K.'s Love Island — became a father Sunday when his new addition, son Aries Campbell, entered into the world, he revealed on Instagram Monday. Sharing a photo of himself holding the baby in a carrier, Campbell explains why he kept the pregnancy news a secret.

"Dam, my replacement is here 👶🏽 - 21 hours later and he's here 🎉 I can't believe the joy I had looking into the eyes of my baby boy ❤️," he writes. "I only told a few friends and family so for most people will be massive surprise seeing this 😄 Over the past 4 years having a private life isn't really a thing so being able to keep this private has been so nice."

Though he didn't tag anyone or name the new mom, Campbell applauded her, saying: "Massive well done to his mum as-well, the process of having a baby is crazy I literally didn't have a clue how strong a woman has to be to go through this!"

Want to get the biggest stories from PEOPLE every weekday? Subscribe to our new podcast, PEOPLE Every Day, to get the essential celebrity, entertainment and human interest news stories Monday through Friday.

A rep for Campbell did not immediately respond to PEOPLE's request for further comment.

On her own Instagram page, influencer Sapphire Yhnell shared a pic of the baby boy cozy in the same bear onesie, writing, "My beautiful boy - Aries 🐻." Both Campbell and Yhnell shared videos on their Instagram Stories from inside the hospital, including one clip from an ultrasound check-in.

Campbell was forced to sit out The Challenge season 35 after a champagne cork incident left him partially blind in his right eye in 2019. The War of the Worlds 2 competitor offered an update on his eye in December, writing: "You find out how much strength you really have when you're thrown off the edge and manage pull yourself back up, always keep it moving."