Fergie & Josh Duhamel: Father's Day Mass

Fergie disguises her growing baby bump under a black shirt as she leaves church on Sunday (June 16) in Brentwood, Calif.

The 38-year-old pregnant singer was joined by her 40-year-old hubby Josh Duhamel at the special Father’s Day mass.

PHOTOS: Check out the latest pics of Fergie

Earlier this week, Fergie kept her baby bump covered with a flowing leopard top as she made a solo visit to a recording studio in Santa Monica.

15+ pictures inside of Fergie and Josh Duhamel at church together…