Sam Poueu's Cheating Led to Stephanie Anderson's Divorce Filing: Source

Accustomed to surprises from her time on The Biggest Loser, Stephanie Anderson recently received a completely unwelcome one from her husband of one year, fellow show alum Sam Poueu.

Biggest Loser Couple Sam Poueu & Stephanie Anderson Split Up – with Baby on the Way

Nobody is winning in this situation.

Biggest Loser stars Sam Poueu and Stephanie Anderson have separated – two months before their first child is due.

“It is with great sadness that my marriage to Sam Poueu is ending,” Anderson tells PEOPLE in an exclusive statement. “Thank you in advance for respecting our privacy during this difficult time.”

Biggest Loser's Sam Poueu and Stephanie Anderson Wed

After a tragic accident and many difficult months, two former Biggest Loser contestants were able to relish a day devoted to celebration.

Sam Poueu, 27, and Stephanie Anderson, 32, exchanged vows at Saint Paul’s Catholic Church in San Francisco on Saturday, PEOPLE confirms.