Beyoncé Knowles announced on Australia's Sunday Night show that she's due to give birth in February. (Grammy night perhaps? After all, she revealed her pregnancy on another awards show, MTV's Video Music Awards, in August.)Jay-Z, 41. The couple consciously decided to put off having kids, Beyonce said. "I think because I've accomplished a lot of things for myself and I really know who I am, I didn't rush into anything," she added. "If there's any time, right now is the time, and I'm so happy."