Cameron Diaz sports baby bump in What To Expect When You"re Expecting

Did you change your mind about having children Cameron Diaz sports baby bump in What To Expect When You”re Expecting

She notoriously said that she thought there were already enough people in the world and women shouldn”t feel bad for saying they didn”t want children.

But Cameron Diaz was happy to sport a fake baby bump in her new movie, What To Expect When You”re Expecting.

The 39-year-old plays aspiring singer and pregnant weight loss show host Jules in the film adaptation of the self-help book.

It suits you: Cameron Diaz plays an aspiring singer and pregnant weight loss show host in her new movie, What to Expect When You

It suits you: Cameron Diaz plays an aspiring singer and pregnant weight loss show host in her new movie, What to Expect When You”re Expecting

In a new trailer for the movie, the blonde is seen talking to actor Matthew Morrison – Glee”s New Directionscoach – who plays Evan, a man who teams up with her character on a celebrity dance show.

Wearing just a blue robe, Cameron jokes about her growing bosom.

Star-studded: Cameron teams up with Glee Star-studded: Cameron teams up with Glee

Star-studded: Cameron teams up with Glee”s Matthew Morrison who plays a man who teams up with her character on a celebrity dance show

Providing the glamour: Jennifer Lopez plays a woman who adopts a baby after having difficulty conceiving

Providing the glamour: Jennifer Lopez plays a woman who adopts a baby after having difficulty conceiving

“If I knew I was going to have a rack this gorgeous, I would have gotten knocked up years ago,” she says.

In 2009, The Mask star, who has has a string of failed relationships and never married, was quoted as saying: “I think women are afraid to say that they don”t want children because they”re going to get shunned.”

She added: “I have more girlfriends who don”t have kids than those that do. And honestly We don”t need any more kids. We have plenty of people on this planet.”

Good-looking: Hunky Brazilian actor Rodrigo Santoro plays her husband who works in the music business and is not ready to have a child

Good-looking: Hunky Brazilian actor Rodrigo Santoro plays her husband who works in the music business and is not ready to have a child

Young stars: Twilight

Young stars: Twilight”s Anna Kendrick and Gossip Girl”s Chace Crawford are old flames who reunite after a turf war between their respective food trucks

Cameron joins a star-studded cast in the highly-anticipated movie, including Jennifer Lopez, who plays Holly, a woman who adopts a baby from abroad after difficulty conceiving.

Hunky Brazilian actor Rodrigo Santoro plays her husband who works in the music business and is not ready to have a child.

Cheryl Cole famously scored a role in the big-budget production, starring as a TV dance talent show judge.

Ready to burst: Bikini model Brooklyn Decker plays the pregnant wife of a

Ready to burst: Bikini model Brooklyn Decker plays the pregnant wife of a “much older man”, played by Dennis Quaid

Picture perfect: Elizabeth Banks is an author and owner of The Breast Choice boutique

Picture perfect: Elizabeth Banks is an author and owner of The Breast Choice boutique

Gossip Girl star Chace Crawford plays food truck owner Marco, who reunites with an old flame, Rosie, played by Twilight”s Anna Kendrick as Rosie, who becomes pregnant.

Sports Illustrated model Brooklyn Decker plays the pregnant wife of a “much older man” named Ramsey, who is played by Dennis Quaid as Ramsey.

Comedian Chris Rock plays Vic, who is the head of a group of expectant fathers who lecture them on what it”s really like to have a baby and become a father.

Hot: True Blood

Hot: Joe Manganiello, showing off his impressive abs, is a photographer of international surfing competitions and the envy of a father support group

Funnyman: Comedian Chris Rock is the leader of the father support group and lectures them on what its like to have children

Funnyman: Comedian Chris Rock is the leader of the father support group and lectures them on what its like to have children

Elizabeth Banks is an author and owner of The Breast Choice boutique. She is militant in her beliefs about what makes a good mother until she gets pregnant for the first time.

True Blood”s Joe Manganiello shows off his impressive set of abs in the movie. He plays a photographer of international surfing competitions and the envy of a father support group

The Hills and The City star Whitney Port has a cameo as herself in the movie.