Rocker Gwen Stefani is pregnant with her third child, according to a U.S. report.

The No Doubt frontwoman and her Bush singer husband Gavin Rossdale already have sons Kingston, seven, and five year old Zuma, and now Stefani is reportedly preparing to add to their brood at the age of 43.

Editors at In Touch magazine quote a source as saying, "She and Gavin couldn't be happier."