The mum-to-be is often seen sporting leather trousers and dressing her baby bump in fitted ensembles, but it seems this weekend she opted for a little more comfort and added a boho vibe to her wardrobe with sandals and baggy trousers.
Fergie, 38, kept her cool on Sunday (16 June) in flowing printed trousers with brown leather sandals and a patterned kaftan top in colour co-ordinating shades. She finished off her low-key look with a pair of brown sunglasses, a large handbag slung over her shoulder and an on-trend head chain.
Joining the Black Eyed Peas star at the Sunday service was her actor hubby Josh, who looked smart in a pair of green trousers and a navy blue shirt.
The couple are regular church goers and were spotted attending a service together earlier this month, for which Fergie also dressed down and took a break from her heels and leather bottoms, by donning some comfy trainers.
Yesterday was no doubt a particularly special day for Josh too, as he celebrated Father's Day as a proud dad-to-be and will have his own tiny tot to dote on him this time next year.
Fergie and Josh announced that they were expecting a baby together in February, but have yet to reveal the whether they will be having a boy or a girl.
What do you think of Fergie's hippie inspired outfit? Let us know in the comment box below, as the best comment from across the website each week wins £50!