Gwen Stefani sparks pregnancy rumours with 'bump' photo

Gwen Stefani has set tongues wagging after recently stepping out in a flowy maxi dress while running errands.

Gossip mags were quick to speculate the 47-year-old was trying to hide a baby bump.

Already a mother to three boys, Kingston, 11, Zuma, 8, and Apollo Rossdale, 3, the baby would be her first child with partner Blake Shelton, 41.

According to HollywoodLife.com, a source close to Gwen said: “Gwen’s body language lately has been of that of someone that is in the early stages of pregnancy.”

“The way she has recently started to carry herself, is the same as when she was carrying Apollo,” the source continued.

“She is walking, differently and holding her body differently, almost covering-up or protecting her belly the exact same way she did last time she was pregnant.”

"She loves Blake, and they are a perfect couple, she would certainly be overjoyed to have his baby. Blake and Gwen are inseparable, they spend almost every night together, and a baby might be on the way for the happy couple!"

Stefani and Shelton are yet to comment on the rumours, so our guess is it's just her dress causing an "illusion".