The Titanic actress has confirmed that she and husband Ned Rocknroll are expecting their first child together at the end of this year.
A rep for Kate said the pair are "thrilled" to be expanding their family.
No other details have been announced.
Kate, 37, is already mum to 12-year-old Mia, her daughter with first husband Jim Threapleton, and 9-year-old Joe, her son with second husband Sam Mendes.
The Oscar winner tied the knot with 34-year-old Ned Rocknroll - the nephew of Sir Richard Branson - in a private ceremony in December 2012 following a summer engagement.
Congrats to Kate and Ned!
Kate's big news comes just a few days after a source told a US magazine the actress was hoping to get pregnant by the end of the year.
The insider told American Star: "Kate knows how much Ned wants to be a father. She thinks they would have the most adorable kid together."
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