Gwen Stefani sons Kingston Zuma Gwen Stefani sons Kingston Zuma

Well Gwen Stefani wasn't totally relaxing, but given the size of her baby bump, she wasn't exactly able to chase Kingston and Zuma around while they were goofing off on a swing set!

Gwen took her boys to a play date in Los Angeles on Saturday, and she showed off her pregnant belly in yet another fashionable ensemble. Based on the size of her bump, we're guessing the No Doubt singer is due sometime in February ... maybe even Valentine's Day? You know Gwen would just love that!