PHOTOS: 2013 Celeb Baby BoomDuchess Of Cambridge Leaves The King Edwards VII HospitalLONDON, ENGLAND - DECEMBER 06: The Duchess of Cambridge, Catherine Middleton and Prince William, Duke of Cambridge leave the King Edward VII hospital where she has been treated for hyperemesis gravidarum, extreme morning sickness at King Edward VII Hospital on December 6, 2012 in London, England.
PHOTOS: 2013 Celeb Baby BoomI Heart Ronson Holiday Party<> at The Bungalow on December 11, 2012 in Santa Monica, California.
PHOTOS: 2013 Celeb Baby Boom19th Annual Screen Actors Guild Award Nominationsattends the 19th Annual Screen Actors Guild Award Nominations at the Pacific Design Center on December 12, 2012 in West Hollywood, California.
PHOTOS: 2013 Celeb Baby Boom"Machine Gun Preacher" New York Premiereattends the "Machine Gun Preacher" premiere at The Museum of Modern Art on September 13, 2011 in New York City.
PHOTOS: 2013 Celeb Baby BoomMagic Mike - European Premiere - Inside Arrivals<> on July 10, 2012 in London, England.
PHOTOS: 2013 Celeb Baby BoomTarget "Falling for You" - NY Eventattends the Target "Falling for You" NY event at Terminal 5 on October 10, 2012 in New York City.
PHOTOS: 2013 Celeb Baby BoomIn Conversation With Jane Fonda & Andy Cohen Benefiting Georgia Campaign For Adolescent Pregnancy PreventionNEW YORK, NY - OCTOBER 11: Jenna Bush Hager and husband Henry Chase Hager attend A Candid Conversation with Jane Fonda and Andy Cohen on the 40th Anniversary of her Academy Award winning role in Klute to benefit the Georgia Campaign for Adolescent Pregnancy Prevention at Darby Downstairs on October 11, 2012 in New York City. (Photo by Rob Kim/Getty Images)
PHOTOS: 2013 Celeb Baby BoomAngel Ball 2012 at Cipriani Wall Street on October 22, 2012 in New York City.
PHOTOS: 2013 Celeb Baby BoomJessica And Ashlee Simpson Visit Dillard's International Plaza In Support Of the Jessica Simpson Collection<> on November 17, 2012 in Tampa, Florida.
PHOTOS: 2013 Celeb Baby BoomThe Hollywood Foreign Press Association (HFPA) And In Style Celebrate The 2013 Golden Globe Awards Seasonat the Hollywood Foreign Press Association's and In Style's celebration of the 2013 Golden Globes Awards Season at Cecconi's on November 29, 2012 in West Hollywood, California.