Pregnant Hilary Duff opens up about her changing body

Hilary Duff, who is expecting her third child, is opening up about her changing body.

In a series of posts to her Instagram story Wednesday, Duff shared images of herself pre-pregnancy and remarked, "Would be lying if I told you I didn't miss this body."

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However, she added, she's also very proud of what her body is doing now -- and she shared a photo of her baby bump to boot.

"This one is working hard and doing pretty cool things for our little/big family," she wrote, "and I'm super grateful and excited about that!"

Duff, 33, announced in October that she and her husband, musician Matthew Koma, also 33, were expecting their second child together. Their daughter, Banks, is 2, and the "Younger" actress also has an 8-year-old son, Luca, from her previous marriage to former professional hockey player Mike Comrie.