Is Cameron Diaz expecting her first child?

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Although the 43-year-old actress has yet to confirm her rumored pregnancy, a source claims Diaz couldn't be happier with husband Benji Madden and is looking forward to starting a family with the Good Charlotte singer.

"Cameron is increasingly happy in her life with Benji," a source told People Magazine on Monday.

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"She had a good run as a tough talking single sister, but like others of her age, she has mellowed and wants more out of life," a second source explained. "She is getting it and loving it. She and Benji like and love each other. Their minds are in sync, they are on the same page."

"Benji came into her life at a time when she needed stability and she got it," said the first source. "He is different from her past boyfriends. She saw a family situation with him and she needed that. And he is fine with whatever she wants to do in her career."

As for Diaz and Madden's family plans, the source revealed, "She has settled in, settled down and wants to have a family."

While Diaz may not be pregnant quite yet, the source told the magazine, "She is doing everything she can to enjoy this time in her life. She is feeling fulfilled and wants to be a mom."