Best Celebrity Baby Bumps

Alessandra Ambrosio

Model Alessandra Ambrosio arrives at the 20th Annual Elton John AIDS Foundation's Oscar Viewing Party held at West Hollywood Park on February 26, 2012 in West Hollywood, California. (Credit: Frederick M. Brown/Getty Images)

Alex Borstein

Actress Alex Borstein arrives at the Premiere of Universal Pictures' "Ted" sponsored in part by AXE Hair at Grauman's Chinese Theatre on June 21, 2012 in Hollywood, California. (Credit: Kevin Winter/Getty Images)

Alyssa Milano

Actress Alyssa Milano arrives at the premiere of Warner Bros. Pictures' "Horrible Bosses" at Grauman's Chinese Theatre on June 30, 2011 in Hollywood, California. (Credit: Alberto E. Rodriguez/Getty Images)

Angelina Jolie

U.S. actress Angelina Jolie poses during a photocall for U.S. actor and director Clint Eastwood's film "The Exchange" at the 61st Cannes International Film Festival on May 20, 2008 in Cannes, southern France. (Credit: Valerie Macon/Getty Images)

Anna Paquin

Actress Anna Paquin arrives at HBO "True Blood" season 5 premiere held at ArcLight Cinemas Cinerama Dome on May 30, 2012 in Hollywood, California. (Credit: Jason Merritt/Getty Images)

Ashlee Simpson

Singer Ashlee Simpson arrives at the 2008 MTV Video Music Awards at Paramount Pictures Studios on September 7, 2008 in Los Angeles, California. (Credit: Frederick M. Brown/Getty Images)

Beyonce Knowles

Singer Beyoncé hosts the screening of "Live at Roseland: The Elements of 4" at the Paris Theatre on November 20, 2011 in New York City. (Credit: Jemal Countess/Getty Images)

Holly Madison

Model and television personality Holly Madison arrives at the premiere of Film District's "Parker" at Planet Hollywood Resort & Casino on January 24, 2013 in Las Vegas, Nevada. (Credit: David Becker/Getty Images)

Ivanka Trump

Ivanka Trump attends "The Celebrity Apprentice" Season 4 Finale at Trump SoHo on May 22, 2011 in New York City. (Credit: Neilson Barnard/Getty Images)

Jenna Fischer

Actress Jenna Fischer arrives at the Premiere Of Freestyle Releasing's "A Little Help" at Sony Pictures Studios on July 14, 2011 in Culver City, California. (Credit: Valerie Macon/Getty Images)

Jennie Garth

Jennie Garth at "The 4th Annual Family Television Awards" at the Beverly Hilton Hotel in Beverly Hills, California. Wednesday, July 31, 2002. (Credit: Kevin Winter/Getty Images)

Jennifer Garner

Actress Jennifer Garner arrives at the 57th Annual Emmy Awards held at the Shrine Auditorium on September 18, 2005 in Los Angeles, California. (Credit: Kevin Winter/Getty Images)

Jennifer Lopez

Actress/singer Jennifer Lopez arrives at "Movies Rock" A Celebration Of Music In Film held at the Kodak Theatre on December 2, 2007 in Hollywood, California. (Credit: Frederick M. Brown/Getty Images)

Jessica Alba

Actress Jessica Alba arrives at "Spy Kids: All The Time In The World 4D" Los Angeles premiere at the Regal Cinemas L.A. Live on July 31, 2011 in Los Angeles, California. (Credit: Jason Merritt/Getty Images)

Jessica Simpson

Recording artist/actress Jessica Simpson attends the 25th Annual Footwear News Achievement Awards at the Museum of Modern Art on November 29, 2011 in New York City. (Credit: Mike Coppola/Getty Images)

Kate Hudson

Actress Kate Hudson arrives at the premiere of Warner Bros. "Something Borrowed" held at Grauman's Chinese Theatre on May 3, 2011 in Hollywood, California. (Credit: Jason Merritt/Getty Images)

Kourtney Kardashian

TV personality Kourtney Kardashian arrives at the Lamar Odom Launches Rich Soil At Kitson LA event on October 21, 2009 in Los Angeles, California. (Credit: Frazer Harrison/Getty Images)

Kristen Bell

Actress Kristen Bell arrives at the 70th Annual Golden Globe Awards held at The Beverly Hilton Hotel on January 13, 2013 in Beverly Hills, California. (Credit: Jason Merritt/Getty Images)

Lilly Allen

Lilly Allen attends the British Fashion Awards 2012 at The Savoy Hotel on November 27, 2012 in London, England. (Credit: Ian Gavan/Getty Images)

Maya Rudolph

Actress Maya Rudolph arrives at the Premiere of Universal Pictures' "Bridesmaids" at the Mann Village Theatre on April 28, 2011 in Westwood, California. (Credit: Michael Buckner/Getty Images)

Natalie Portman

Actress Natalie Portman arrives at the Spirit Awards in Santa Monica, California on February 26, 2011.This is the 26th annual Spirit Awards, Film Independent’s event which honors films made by filmmakers who embody independence and originality. (Credit: Gabriel Bouys/Getty Images)

Nicole Kidman

Actress Nicole Kidman arrives at the 43rd annual Academy Of Country Music Awards held at the MGM Grand Garden Arena on May 18, 2008 in Las Vegas, Nevada. (Credit: Charley Gallay/Getty Images)

Reese Witherspoon

Actress Reese Witherspoon poses at the "Mud" photocall during the 65th Annual Cannes Film Festival at Palais des Festivals on May 26, 2012 in Cannes, France. (Credit: Pascal Le Segretain/Getty Images)