Fergie: Mother's Day Baby Bump with Josh Duhamel!

Fergie shows off her growing baby bump while arriving to church with Josh Duhamel on Sunday (May 12) in Beverly Hills, Calif.

The 38-year-old pregnant singer and her 40-year-old actor hubby held hands as they strolled to mass together.

PHOTOS: Check out the latest pics of Fergie

“Happy Mother’s Day to my wonderful mommy Terri & all the strong mamas out there.” the singer captioned a vintage photo of her mom on Instagram.

Earlier this week, Fergie looked chic in a fitted floral dress while promoting her new nail polish line with Wet N Wild Beauty.