Former Dancing With the Stars pros Edyta Sliwinska and Alec Mazo are expecting a baby next year, the pregnant mom-to-be announced via Twitter Credit: courtesy of Edyta Sliwinski

Former Dancing With the Stars pros Edyta Sliwinska and Alec Mazo are turning their duo into a trio! The couple, who appeared in some of DWTS' early seasons, are expecting a baby next year, she confirmed via Twitter on Thursday, Oct. 10.

"There it is, my little secret. Less than 2lbs little," the 32-year-old Polish-born dancer tweeted, alongside a photo of her barely-there baby bump.

Later, acknowledging all the well-wishes from fans, the pregnant mom-to-be added: "Thank you! Thank you! Thank you! I'm overwhelmed with all your wonderful messages & congratulations. You are the best...Thank you! Can't wait to be a mommy."

This will be the first child for the happy couple, who married on Sept. 1, 2007 and recently celebrated their sixth wedding anniversary. Sliwinska competed on 10 seasons of DWTS, making it all the way to the top two with Jason Taylor in season six. Mazo, meanwhile, appeared on five seasons, winning the Mirrorball in season one with partner Kelly Monaco.