LONDON (CBS4) – Catherine, the Duchess of Cambridge, is expecting her third child.

Kensington Palace announced Monday that she and Prince William are expecting.

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“The Queen and members of both families are delighted with the news,” the official announcement read.

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Unfortunately, because the Duchess suffers from severe morning sickness, she will be out of the public eye for a while.

The royal couple already has two children, Prince George, 4, and Princess Charlotte, who is two.

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Prince William, Duke of Cambridge, Prince George of Cambridge, Princess Charlotte of Cambridge and Catherine, Duchess of Cambridge (Photo by Julian Simmonds – Pool/Getty Images)