Anderson, 33, is due in July. She and Poueu, 27, started dating in 2010 during the ninth season of the weight loss reality series before marrying this past April.
Poueu told the magazine he knows his wife, a CBS Radio executive, will make a great mom after she helped take care of him after a fall in September 2011 left him in the hospital with a punctured lung, severed kidney, shattered pelvis, fractured tibia and traumatic brain injury. "Just from the experience of her being my caretaker post-accident, it was a dead giveaway that she'd be a fantastic mother," Poueu, a trainer, told the magazine. "I felt like this was one of the many reasons God kept me alive during the five-story fall, so I could be the father of my wife's baby."
Until the baby comes, however, Poueu has already started taking care of the mom-to-be. "Sam has been wonderful. He rubs my feet!" Anderson said. "I am feeling really good. I'm starting to feel changes in my body, and I'm excited to see the full-out belly!"
The new season of The Biggest Loser airs Mondays at 8/7c on NBC.