Nikki Bella, 36, welcomed her first child with her fiancé Artem Chigvintsev on July 31st and less than a month later the Dancing with the Stars pro returned to the dance studio for the revamped season 29 of the ABC show. That means 8-12 hour dance rehearsals with his partner Kaitlyn Bristowe, 34, and a lot of time away from his infant son and future wife.