The 36-year-old Gavin and Stacey star and her husband, former Emmerdale actor, James Thornton, 38, both took to Twitter to announce that they are expecting a baby.
"Exciting news! James and I are expecting another baby!!!! Yey!!!! Xxx," wrote Joanna.
Exciting news! James and I are expecting another baby!!!! Yey!!!! Xxx
- Joanna Page (@jopage_) October 10, 2014
"Thrilled to say that Jo and I are having another baby!!!! Over the moon!" added James.
Thrilled to say that Jo and I are having another baby!!!! Over the moon! X
- James Thornton (@JamesThornton_) October 10, 2014
The couple married in 2003, and Joanna gave birth to their first child, Eva Madelief Russell, on 15 Feb 2013 in The Lindo Wing at St Mary's Hospital in Paddington, where the Duchess of Cambridge delivered Prince George just five months later.
Joanna is an only child, but she's made no secret of the fact she and James are keen to have a big family.
"James is one of four so to him, four children is the norm," she recently told Walesonline. "For me, one is the norm but I can see how people get addicted to having babies.
"I would like to keep going and try to pop out as many as possible – I only wish I'd started having them younger."
Joanna's Gavin and Stacey co-star James Corden, is also expecting his second child with his wife Julia.
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