3 December 2012
Last updated at 16:06 ET
Media from across the world have gathered outside King Edward VII Hospital in central London where the Duchess of Cambridge has been admitted following the announcement that she is expecting a baby. Kate is being treated for a severe form of morning sickness.
The Duke and Duchess of Cambridge were driven to the hospital by car. Prince William spent several hours with his wife before leaving in the evening.
St James's Palace has announced that the Duchess of Cambridge is expecting a baby. Members of the Royal Family and the duchess's family, the Middletons, are said to be delighted.
Prince William and Kate Middleton's relationship began as students in Scotland in 2001. The couple met at St Andrews University, Fife, on an art history course, although William later switched to geography.
In 2006, Miss Middleton was a guest at Sandhurst, when the prince was commissioned as an officer in the British Army. It was the first occasion that she had been seen at a high-profile public event also attended by the Queen and other senior royals.
But the relationship was coming under strain as photographers followed Miss Middleton's every move. The couple broke up in April 2007, insisting they were "just good friends" after being pictured at the Princess Diana tribute concert three months later.
Before too long, the prince and Kate Middleton were regularly spotted together.
They could also be seen at a number of sporting events and are seen here watching England play Italy at Twickenham.
She was at his side as he was given his RAF wings by his father.
Amid a blaze of photographers' flash bulbs, William and Kate looked extremely happy as they spoke to the press on the day of their engagement.
In 2011 Prince William and his newly titled bride, the Duchess of Cambridge, kissed on the balcony of Buckingham Palace after their wedding at Westminster Abbey.
The couple were regulars in the crowd at the London Olympics, here cheering Team GB to victory and a new world record in the men's team sprint track cycling final.
The duchess was last seen in public on Friday when she visited her old school St Andrew's School in Pangbourne in Berkshire.
"As the pregnancy is in its very early stages, Her Royal Highness is expected to stay in hospital for several days and will require a period of rest thereafter," the statement added.
St James's Palace refused to be drawn on when the royal couple became aware of the pregnancy, only saying "recently". But it is understood that the pregnancy has not passed the 12-week point and the palace announcement was prompted by the Duchess's medical condition.