Nicole Richie expecting baby number three?

Nicole Richie has been spotted with what looks like a baby bump, sparking pregnancy gossip. Fans and media alike are all wondering whether the star is pregnant with her third child.

Leaving a gym near her home, Nicole was papped looking rather round around the tummy.

She and husband Joel Madden already have two children, Harlow Winter Kate, 3, and Sparrow James Midnight, 1.

With cool names like that, we wonder what baby number three would be called?