West, 35, first dropped the bomb that Kardashian was pregnant during a concert on Dec. 30. "Stop the music and make noise for my baby mama," he said referring to Kardashian, who was in the audience. The reality superstar then confirmed the news on her website, writing, "It's true!! Kanye and I are expecting a baby. We feel so blessed and lucky ... Looking forward to great new beginnings in 2013 and to starting a family."