Actress Haylie Duff is expecting her first child.

The Napoleon Dynamite star and her fiance Matt Rosenberg are preparing to become first-time parents.

The couple recently celebrated a milestone in its romance, and Duff took to on 22 November (14) to share a sweet photo of herself and her beau on the beach, adding the caption, "Happy Anniversary to the greatest man I know. I'm lucky to be yours."

Duff and Rosenberg announced their engagement in April (14).