The reality show star, 32, is four months pregnant with her first child, her rep confirms to PEOPLE.
Trebunskaya — who split from her husband of nine years, fellow DWTS pro Jonathan Roberts, last October — hasn’t revealed the name of the baby’s father.
The Russian dancer isn’t letting her pregnancy slow her down — she took to the stage with Dmitry Chaplin as one of the performers in Ballroom With a Twist in Ogunquit, Maine, last week.
Instagramming a photo in front of the billboard, she wrote, “Would never [have] thought that this situation would be in my life…#feelingblessed for the experience and opportunity.”
– K.C. Blumm with reporting by Monica Rizzo