Sienna Miller

Sienna Miller recently gave birth to a baby girl. (credit: Dan Kitwood/Getty Images)

Kourtney Kardashian

Kourtney Kardashian and Scott Disick have two children together, Mason Dash Disick and Penelope Scotland Disick. (credit: Michael Buckner/Getty Images)

Camila McConaughey

Camila McConaughey has two children with husband, Matthew McConaughey. (credit: GABRIEL BOUYS/AFP/Getty Images)

Adriana Lima

Adriana Lima has a daughter with husband Marko Jaric. (credit: Jerod Harris/Getty Images)

Uma Thurman

Uma Thurman has two children with ex-husband Ethan Hawke. (credit: Jason Merritt/Getty Images)

Jessica Simpson

Jessica Simpson and fiance Eric Johnson just gave birth to their daughter Maxwell Drew Johnson. (credit: Jason Merritt/Getty Images)

Beyonce Knowles

Beyonce Knowles has one daughter, Blue Ivy, with husband Jay-Z. (credit: Mike Coppola/Getty Images)

Jennifer Garner

Jennifer Garner has two daughters and one son with husband, Ben Affleck. (credit: Jason Merritt/Getty Images)

Jennifer Hudson

Jennifer Hudson has one son, David. (credit: Kevin Winter/Getty Images)

Alicia Keys

Alicia Keys has a son named Egypt Daoud with Swizz Beatz. (credit: Jason Merritt/Getty Images)

Britney Spears

Britney Spears has two sons with ex-husband Kevin Federline. (credit: Jason Merritt/Getty Images)

Jada Pinkett Smith

Jada Pinkett Smith and Will Smith have two children together. (credit: Vittorio Zunino Celotto/Getty Images)

Victoria Beckham

Victoria Beckham and husband David Beckham have three sons and a daughter. (credit: Toby Canham/Getty Images)

Kate Hudson

Kate Hudson has two sons, Ryder and Bingham. (credit: Pascal Le Segretain/Getty Images)

Alessandra Ambrosio

Alessandra Ambrosio has a son and daughter with business man Jamie Mazur. (credit: Jamie McCarthy/Getty Images)

Brooke Burke

Brooke Burke has two children with her current husband David Charvet and two daughters from a previous marriage. (credit: Frazer Harrison/Getty Images)

Natalie Portman

Natalie Portman has a son with ballet dancer Benjamin Millepied. (credit: Kevork Djansezian/Getty Images)

Reese Witherspoon

Reese Witherspoon is expecting her third child. (credit: Jason Merritt/Getty Images)

Heidi Klum

Heidi Klum is a busy mother of four. (credit: THOMAS SAMSON/AFP/Getty Images)

Jessica Alba

Jessica Alba still looks smokin’ after giving birth to daughters Honor and Haven. (credit: ALBERTO PIZZOLI/AFP/Getty Images)

Angelina Jolie

(credit: Dave Hogan/Getty Images)

Katie Holmes

Holmes has one daughter with actor, Tom Cruise. (credit: Michael Loccisano/Getty Images)

Sofía Vergara

SofÌa Vergara has a son Manolo Gonzalez-Ripoll Vergara with her childhood sweetheart in 1992. (credit: Mike Coppola/Getty Images for Hollywood Reporter)

Jaime Pressly

Jaime Pressly gave birth to her son Dezi James Calvo with her beau DJ Eric Cubiche. (credit: by Valerie Macon/Getty Images)

Nicole Richie

Richie and husband, Joel Madden, have 2 children together. (credit: MARK RALSTON/AFP/Getty Images)

Naomi Watts

Naomi Watts has two boys with Liev Schreiber. (credit: ROBYN BECK/AFP/Getty Images)

Padma Lakshmi

Padma Lakshmi has one daughter with American venture capitalist Adam Dell. (credit: Craig Barritt/Getty Images)

Jennifer Lopez

Jennifer Lopez still rocks body suits and body conscious red carpet gowns after having twins Max and Emme with singer Marc Anthony. (credit: Jemal Countess/Getty Images)

Halle Berry

(credit: Kevin Winter/Getty Images)

Halle Berry might take the cake for having the most beautiful baby girl, Nahla Ariela Aubry, whose father is Canadian supermodel Gabriel Aubry. (credit: Kevin Winter/Getty Images)

Mariah Carey

Mariah Carey is the mother of twins, Monroe and Moroccan, with husband, Nick Cannon. (credit: Jason Kempin/Getty Images)

Amy Adams

New mom Amy Adams recently made her Post-baby red carpet debut with rave reviews. She looks great after giving birth to daughter Aviana Olea. (credit: Frazer Harrison/Getty Images)

Jenny McCarthy

Jenny McCarthy still looks fantastic. She is the mother of Evan, 8. (credit: Alberto E. Rodriguez/Getty Images)

Gwyneth Paltrow

Gwyneth Paltrow seems to have gotten even more toned since becoming a mom to Apple and Moses with husband Chris Martin of Coldplay. (credit: Andrew H. Walker/Getty Images)

Gwen Stefani

Gwen Stefani and husband Gavin Rossdale have two sons, Kingston and Zuma. With her killer fashion sense and signature red lips, Gwen has got to be one of Hollywood’s coolest moms. (credit: Ethan Miller/Getty Images)

Ellen Pompeo

Grey’s Anatomy star Ellen Pompeo has one year old daughter Stella Luna Pompeo Ivery. (credit: Amy Sussman/Getty Images)

Gisele Bundchen

Gisele Bundchen had THE body, and still looks fantastic after having son Benjamin with NFL star Tom Brady. (credit: Joe Corrigan/Getty Images)

Ashlee Simpson

Ashlee Simpson has an even tinier body now than before having son Bronx with Fall Out Boy’s Pete Wentz. (credit: Jason Kempin/Getty Images)