Margot Robbie and husband Tom Ackerley are getting closer to becoming a family of three!

On Monday, Aug. 26, the couple, who is expecting their first baby together, were spotted taking some time for themselves in Sardinia as they prepare for the arrival of their little one. The Barbie star, 34, stepped out in black flowy pants and a white button-down top that she kept almost completely unbuttoned — exposing her bare baby bump.

The soon-to-be mom completed her look with all black accessories, including a bucket hat, Prada sunglasses, slides and a slouchy shoulder bag held in her hand.

Ackerley, 34, matched his wife’s casual attire, rocking a pair of khaki shorts, a white T-shirt, black sandals, and black sunglasses.

After PEOPLE confirmed Robbie’s pregnancy in early July, another insider revealed to PEOPLE that the couple is “happy” that the news is out.

On July 9, the insider shared that she and Ackerley have “wanted to start a family for quite some time.”

“Family means a lot to both of them and they knew early on in their relationship being parents was something they really wanted,” the source told PEOPLE.

“They’ve been keeping it under wraps for a while but are happy the news is out,” added the source.

A set source previously told PEOPLE that “no one suspected that she was pregnant” while Robbie filmed her latest project, A Big Bold Beautiful Journey.

Robbie “was super professional and focused while filming,” said the source, adding, “She had long days, but it didn’t seem like a big deal to her.”

“[Margot] looked amazing and seemed very happy,” the source told PEOPLE. “She got along with Colin [Farrell], and they had fun filming.”