Actress Amy Huberman and husband Brian O'Driscoll are expecting their second child.
The Irish Independent reports that the baby is due in November.
Speaking at the launch of David O'Doherty's new book in Dublin, Huberman told the paper: "We haven't learnt the sex yet so we want it to be a surprise."
She added: "I managed to keep it under wraps for so long - we thought we'd get on with it."
The couple's daughter, Sadie, was born in February 2013.