Reese Witherspoon pregnant again?

Oscar winner Reese Witherspoon and husband Ryan Phillipe are expecting their third child, according to media reports.

The "Walk the Line" actress sparked rumors she was expecting last month, when she appeared on a Malibu, Calif., beach with her daughter Ava sporting what looked like a baby bump.

A source tells Star magazine, "She was wearing what looked like an old-fashioned 1920s-style bathing suit that covered her tummy.

"But you could still see the outline of what appeared to be at least a four-month baby bump."

The 30-year-old has also been seen at trendy Babystyle boutique in Santa Monica, Calif., on three separate occasions and has been photographed wearing loose fitting clothes.

The source adds, "She's a very private person, and doesn't often talk about it when she is pregnant."

Witherspoon and Phillipe already have two children, Ava, 6, and Deacon, 2, and have made no secret of their love of kids.

The actress told Vogue magazine, "We both love children so much. I wouldn't want this life without children."

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