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Duchess Suffering From 'Acute' Morning Sickness

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The Duchess Of Cambridge is still in the early stages of her pregnancy – less than 12 weeks – and already the next royal is making his or her presence dramatically known.

The Palace has described the Duchess Of Cambridge's morning sickness as "acute" and she is at King Edward VII Hospital in Central London, joined by her husband, Prince William. According to a source at St James's Palace, the Duchess arrived at the hospital from her parents' new home in Bucklebury.

The source adds that the couple decided to "be open" about Catherine's pregnancy because she was admitted to the hospital. But, since it's so early, "we aren't going into detail about the pregnancy itself," the source says.

The Duchess, 30, also has canceled her next three official engagements.

Prince William's wife is suffering from hyperemesis gravidarum, characterised by severe and persistent nausea and vomiting during pregnancy, the palace says. If untreated, the patient can suffer dehydration and dangerous weight loss.

This is the first child for the royal couple, who wed in April 2011.

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