Red Carpet Pregnancy Fashions

Actress Angelina Jolie wore a flowing dress at the red carpet premiere of the film "Changeling" in 2008 at the Cannes Film Festival.

Photos: Angelina Jolie

Amy Adams

A pregnant Amy Adams walks the red carpet at the premiere of the romantic comedy "Leap Year" in New York, Wednesday, Jan. 6, 2010.

Photos: Amy Adams
Photos: Other Pregnant Stars

Cate Blanchett

Actress Cate Blanchett maintained her star style in this fitted burgundy gown at the 61st Annual Golden Globe Awards in 2004.

Photos: Cate Blanchett

Heidi Klum

Model/television host Heidi Klum stepped out in this striking red goddess-inspired gown at the 58th Annual Primetime Emmy Awards in 2006.

Photos: Celeb Mommy Bodies

Multiple Pregnancies for Heidi Klum

Heidi Klum has had plenty of experience with maternity wear - she has four children, three with husband Seal and one with ex-boyfriend Flavio Briatore. Klum and Seal are seen here arriving at the 61st Primetime Emmy Awards in 2009.

Photos: Celeb Mommy Bodies

Mariska Hargitay

Actress Mariska Hargitay glows in this white flowing gown. She's seen here arriving at the 12th Annual Screen Actors Guild Awards in Los Angeles, Calif.

Amanda Peet

Petite Amanda Peet showed off her baby belly in this ruched dress at the red carpet premiere of the film "Please Give" at the International Film Festival Berlinale on Feb. 16, 2010.

Amy Poehler

On the arm of her husband, Will Arnett, comedian Amy Poehler showed off her baby belly in this stunning blue number at the annual spring gala for New York's Fresh Air Fund in 2008.

Belly Bump on the Job

Co-host Samantha Harris sports a belly bump as she talks with past "Dancing With The Stars" winners Kelly Monaco (season one), left, and Drew Lachey (season two) during the live season finale on May 22, 2007.

Rachel Weisz

A pregnant Rachel Weisz poses with her Screen Actors Guild award for her performance in "The Constant Gardener" in 2006.