The 22-year-old Hilary Duff is pregnant, according to the Star Magazine.  Duff had a wedding last August with NHL star Mike Comrie.

They weren't actively trying to conceive but agreed that if it happened, it happened, according to Star Magazine's source.

The person added that Hilary and her husband is ecstatic about their sudden pregnancy.

Duff first became famous when she was casted as one of the children in the pilot episode of the NBC sitcom Daddio in 2000.

She became highly popular through her lead role in Lizzie McGuire, which first aired on the Disney Channel on January 12, 2001.  The show was a ratings hit, drawing in 2.3 million viewers per episode.