The Black Eyed Peas star, who is expecting her first baby with husband Josh Duhamel, was pictured arriving at a music studio in Los Angeles.
Fergie - real name Stacy Ferguson - teamed her loose fitting shirt with a pair of black skinny jeans, black courts and a tailored jacket.
She also popped on her favourite round lens sunglasses to protect her eyes from the rays and left her hair loose in a centre parting.
Fergie, 38, and 40-year-old actor Josh announced they were expecting a baby together in February.
Check out the other stars who are currently expecting babies in our gallery below!