If the rumors are true, Cameron Diaz and Benji Madden are over the moon not just because she's pregnant, but she's carrying twins!

According to the rumor started by Life & Style magazine, as shared by Hollywood Life, the couple was shocked by the news at first, but they were "completely overjoyed" about the possiblity of having twins.

"Although she's just a few weeks in, Cameron is hoping her babies turn out to be a boy and a girl. She's excited to start shopping for the nursery," the tabloid said.

At this point, Cameron Diaz and Benji Madden are "very cautious" about the pregnancy but the good news is "she's very healthy and everything looks great so far.

As for the former Good Charlotte guitarist, the source alleged, "He's so protective of her and the babies that it's hard for him to focus on anything else. He just can't wait to be a dad."

A previous Life & Style report claimed that Cameron Diaz is doing everythign she can to get pregnant "like working out and eating fertility-boosting foods, and she's even resorted to scheduling sex.

Entertainment Tonight reported that Cameron Diaz and Benji Madden sparked the pregnancy rumors when the "Sex Tape" actress was seen covering her belly while arriving at the LAX following a trip to Sydney, Australia.

"Diaz, 43, and Madden, 36, were flanked by photographers when they landed in Los Angeles on Monday who tried to coax the news out of the newlyweds by wishing them congratulations," the article said. "The newlyweds kept quiet as they headed to their car, refusing to confirm or deny the rumors.

Accordingly, when they arrived, Cameron Diaz was wearing baggy clothes and covering her tummy with a handbag which made it hard to determine if she's pregnant.

Cameron Diaz and Benji Madden tied the knot in January this year in her Beverly Hills mansion, attended by around 100 of their closest friends and families.