- A statement said the Queen and the royal family was delighted by the news
- Kate Middleton was suffering from morning sickness due to the pregnancy
- The third child will be fifth in line for the throne
"Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child," Kensington Palace said in a statement.
"The Queen and members of both families are delighted with the news," it said.
Read the press release in full ↓ pic.twitter.com/vDTgGD2aGF— Kensington Palace (@KensingtonRoyal) September 4, 2017
William and Kate's two children George and Charlotte are aged four and two. Their third child would be fifth in line to the British throne. William, 35, is the eldest son of Prince Charles, the first in line to the throne, and a grandson of the queen.
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