Zoe is expecting her first child with husband Marco Perego but attempted to keep her blooming tummy hidden as she left LAX Airport in the afternoon (11 September).
The Hollywood actress, 37, was dressed down for her flight, choosing to wear a stretchy pencil skirt, maternity T-shirt and cardigan. Zoe also sensibly picked flats over heels.
Ankles are prone to swelling on flights, let alone when a lady is pregnant, so she definitely made the right choice with her footwear!
Rumours had been circulating for a while that Zoe and Marco were expecting a baby, but the couple didn't confirm their pregnancy until last month.
While Marco took part in the ALS Ice Bucket Challenge, Zoe was also seen in his video showing off her bump and explaining why she had decided to give it a miss.
She said: "I am accepting James Gunn's challenge to take on the ice bucket challenge. Obviously, I can't do it myself so I nominate my husband to take on the challenge!"
Celebrities who announced pregnancies in 2014:
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