They were spotted heading out of Joan's on Third in Studio City, California. It's a specialty food marketplace that is frequented by other celebs including Modern Family star Ariel Winter.
Her growing baby bump was on display in a flowy black dress.
Matthew, who is a frequent visitor to the local farmers market alongside his ladylove, sported a green jacket over a white t-shirt and jeans for the day out.
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The happy couple are expecting their first child, a girl, later this year. She already has a son, Luca, with her ex Mike Comrie.
When do you think Hilary will give birth? Sound off in the comments!