The platinum-blonde star posted a photo to Twitter of herself showing off her neat baby bump in an edgy, all black ensemble consisting of leather-panel leggings, a sparkling Seraphine dress and towering stiletto sandals.
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Aside from her blossoming tummy, the 44-year-old star looks as slender as ever.
She captioned the impressive picture with: "bump it #allblack #inappropriateshoes #capturethemoment #miracle gx"
Gwen is expecting her third child with her musician husband Gavin Rossdale. The couple are already parents to sons Kingston, seven, and five-year-old Zuma.
She revealed on Friday the new addition is to be another blue bundle of joy. Posting a picture of herself to her Instagram account of herself wearing a crown, the star wrote: "I was ready to hand over the crown. but I guess I am still queen of the house. #itsaboy #surroundedbyboys"
"Still Queen of the house": Gwen revealled she's expecting a boy with this fun snap.
It seems Gwen is going to have her hands full, if the new baby is as boisterous as his older brothers.
'From the moment they wake up, they start beating on each other," the No Doubt star said during a September 2012 interview with Marie Claire.
"I never knew they would be so physical. They're just starting to play real well together, but with a lot of fighting.
"They do look out for each other - especially the little one, he really loves his older brother."