Showbiz
The actress, who plays Claire Peacock in the ITV1 soap, is expecting her first baby with accountant husband Jon Wormold.
She found out the news in November but wanted to keep it quiet until her 12 week scan.
She told The Mirror: "We haven't stopped smiling. It's such a special time and I feel so lucky we're going to share it."
Haworth added that her character's postnatal depression following the birth of son Freddie had helped "prepare" her for being a mother.
The 28-year-old married Wormold in May 2006 after a two-year romance.
She is due to give birth in July.
> Julia chats to Digital Spy about the postnatal depression storyline
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