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We know Ben Affleck's wife is preggers again, so what about Ms. Stefani? She sure looks like it in some of these pix!

Gwen, Gavin, Kingston and Zuma all attended a birthday party - they sure go to a lot of 'em! - in Long Beach on Saturday looking like a picture perfect happy family. Later that night, the super-hot couple went out in Malibu and Gwen wore a very suspicious outfit:

Gwen Stefani Gavin Rossdale boots dress party make up

Fabulous? Naturally. But could she also be concealing something underneath it all? Absolutely!