Yes, she has four children already. Yes, an article was recently posted on one of her Web sites that she was expecting baby #5. But Dancing With the Stars co-host Brooke Burke is ‘fessing up: she’s not pregnant! Her Twitter feed announced the high-jinx, “April Fools Tweetie pies!!!!! But seriously!!!!! I am not preggers….” Burke’s current brood includes three girls — Neriah (10) and Sierra Sky (8) from her first marriage, and Heaven Rain (3) with fiancé David Charvet — and one boy — Shaya Braven (2), also with Charvet.