Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge pose for a photograph with their son, Prince George Alexander Louis of Cambridge, surrounded by Lupo, the couple's cocker spaniel, and Tilly the retriever (a Middleton family pet) in the garden of the Middleton family home, Aug. 2013 in Bucklebury, Berkshire.

The Duke and Duchess of Cambridge and Prince George are pictured in the garden of the Middleton family home in Bucklebury, Berkshire.

British newspaper front pages show photographs of the new Prince, July 24, 2013, in London.

Onlookers watch Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge leave The Lindo Wing of St Mary's Hospital with their newborn son at St Mary's Hospital, July 23, 2013, in London.

Members of the public and tourists gather to view a guardsman through the railings outside Buckingham Palace in London, July 23, 2013.

Catherine, Duchess of Cambridge departs The Lindo Wing with her newborn son at St Mary's Hospital, July 23, 2013, in London.

Kate, the Duchess of Cambridge, carries her new born son, the Prince of Cambridge outside St. Mary's Hospital, in London, July 23, 2013.

The Duke and Duchess of Cambridge leave the Lindo Wing of St Mary's Hospital in London, July 23 2013, carrying their new-born son, the Prince of Cambridge.

Britain's Prince William and Kate, Duchess of Cambridge, hold the Prince of Cambridge, July 23, 2013, as they pose for photographers outside St. Mary's Hospital exclusive Lindo Wing in London.

Britain's Prince William and Kate, Duchess of Cambridge hold the Prince of Cambridge, July 23, 2013, outside St. Mary's Hospital exclusive Lindo Wing in London.

The Honourable Artillery Company fire a 62 round Royal Gun Salute outside the Tower of London to celebrate the birth of the royal baby, July 23, 2013, in London.

Royal fans wait for Catherine, Duchess Of Cambridge and her newborn son at St. Mary's Hospital, July 23, 2013 in London.

Royal fans wave Union flags as they wait for Catherine, Duchess Of Cambridge and her newborn son at St Mary's Hospital, July 23, 2013 in London.

Students of Buckleberry Church of England Primary School draw congratulatory cards for the Duke and Duchess of Cambridge celebrating the birth of their son, in the Duchess of Cambridge's hometown of Bucklebury, July 23, 2013, in Bucklebury, England.

Britain's Prince Charles, the Prince of Wales, with 6 month old Emily Scott, as he meets crowds of well wishers on a visit to Bugthorpe, England, July 23, 2013.

Members of the press wait for a glimpse of The Duke and Duchess of Cambridge and their newborn son at St Mary's Hospital, July 23, 2013 in London.

British newspapers carrying front page news of the birth of a baby boy of Prince William and Kate, Duchess of Cambridge are seen on display for sale at a news stand in central London, July 23, 2013.

Lightning strikes behind The London Eye in central London which is lit up in the national colors of red, white and blue to mark the birth of Prince William and his wife Kate's first child, July 23, 2013.

A blackboard inside the Ye Olde King's Head English pub celebrates the announcement of the birth of a baby boy to the Duke and Duchess of Cambridge, July 22, 2013, in Santa Monica, Calif.

Hayley Simmonds, an employee at the British restaurant and grocery Tea & Sympathy, hangs a sign in the window celebrating the birth of Catherine, Duchess of Cambridge, and her husband Prince William's first child, July 22, 2013, in New York.

People celebrate the announcement of the birth of a baby boy to the Duke and Duchess of Cambridge, outside St Mary's Hospital in London, July 22, 2013.

People celebrate outside Buckingham Palace after an easel was placed in the forecourt of the palace with a notification announcing the birth of a baby boy, at 4.24pm to the Duke and Duchess of Cambridge at St Mary's Hospital in west London, July 22, 2013.

People take pictures of a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge, on display for public view at Buckingham Palace in London, July 22, 2013.

A large crowd cheers as the Queen's press secretary Ailsa Anderson and a footman post the official announcement of the birth of the royal baby on an easel at Buckingham Palace, June 22, 2013.

Members of the public lean in to take pictures as the Queen's Press Secretary Ailsa Anderson with Badar Azim, a footman, put up a notice proclaiming the birth of a baby boy to Prince William and Kate, Duchess of Cambridge on display for public view at Buckingham Palace in London, July 22, 2013.

An easel stands in the forecourt of Buckingham Palace in London carrying an official document to announce the birth of a baby boy, at 4.24pm, to the Duke and Duchess of Cambridge at St Mary's Hospital, July 22, 2013. The child is now third in line to the British throne.

A town crier announces the birth of the son of The Duke and Duchess of Cambridge outside the Lindo Wing at St Mary's Hospital in London, July 22, 2013.

Buckingham Palace official Ed Perkins walks with the birth announcement of the royal baby to be taken to Buckingham Palace, outside St. Mary's Hospital's exclusive Lindo Wing in London, July 22, 2013.

Royal fans are interviewed by a television crew outside St Mary's Hospital, July 22, 2013, in London. Clarence House have announced that the Duchess of Cambridge has arrived at St Mary's Hospital in west London where she is expected to give birth.

People look at Buckingham Palace in London where a notice announcing the birth of the baby will be posted, July 22, 2013. Buckingham Palace officials say Prince William's wife, Kate, Duchess of Cambridge, has been admitted to St Mary's Hospital in the early stages of labor.

Britain's Queen Elizabeth II arrives by car at Buckingham Palace in London, July 22, 2013.

A news cameraman reads a newspaper across from St. Mary's Hospital's exclusive Lindo Wing in London, July 22, 2013.

Journalists discuss the odds for the royal baby's name outside The Lindo Wing of Saint Mary's Hospital in Paddington, west London, July 22, 2013.

A royal fan poses for a photo with a cake outside The Lindo Wing of Saint Mary's Hospital in Paddington, west London, July 22, 2013.

A girl holds a sign giving odds on the name of the Royal Baby outside The Lindo Wing of St Mary's Hospital as the UK prepares for the birth of the first child of The Duke and Duchess of Cambridge at St Mary's Hospital, July 22, 2013 in London.

Crowds wait outside Buckingham Palace on July 22, 2013 in London. Clarence House have announced that the Duchess of Cambridge has arrived at St Mary's Hospital in west London where she is expected to give birth.

Crowds take pictures in front of Buckingham Palace on July 22, 2013 in London. Clarence House have announced that the Duchess of Cambridge has arrived at St Mary's Hospital in west London where she is expected to give birth.

A mobile phone displays a Tweet from Clarence House outside St Mary's Hospital on July 22, 2013 in London, England.

A view of the press outside The Lindo Wing of St Mary's Hospital as the UK prepares for the birth of the first child of The Duke and Duchess of Cambridge at St Mary's Hospital on July 22, 2013 in London.

Onlookers view the gathering media in front of the Lindo Wing of St Mary's Hospital, where Britain's Catherine, Duchess of Cambridge arrived to give birth in London, July 22, 2013.

Police stand guard at the doors of The Lindo Wing as The Duchess Of Cambridge goes into labor at St Mary's Hospital on July 22, in London.

Members of the world's media gather outside The Lindo Wing as The Duchess Of Cambridge goes into labor at St Mary's Hospital on July 22, in London.

Television journalists gather in front of the Lindo Wing of St Mary's Hospital, where Britain's Catherine, Duchess of Cambridge arrived to give birth in London, July 22, 2013.

Photographers gather in front of the Lindo Wing of St Mary's Hospital, where Britain's Catherine, Duchess of Cambridge arrived to give birth in London, July 22, 2013.

Tourists view the gathering media in front of the Lindo Wing of St Mary's Hospital, where Britain's Catherine, Duchess of Cambridge arrived to give birth in London, July 22, 2013.

Reporters and photographers gather outside St Mary's Hospital, July 22, 2013, in London.

A mask depicting Britain's Duchess of Cambridge and clocks showing New York and London time which were placed by members of the media are seen across St. Mary's Hospital exclusive Lindo Wing in London, July 21, 2013.

A television presenter records a piece to camera outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013, where Prince William and wife Catherine's baby is expected to be born. Britain's Prince Charles joked Monday that his son's baby was, "hopefully," on the way. But wife Camilla went further, saying it could arrive "by the end of the week."

Royal supporter Terry Hutt adjusts Union flags outside the Lindo Wing of St. Mary's Hospital, where Britain's Catherine, Duchess of Cambridge is expected to give birth, London, July 17, 2013.

Ice cream is handed out to media representatives as part of a promotion outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013. Queen Elizabeth II, it seems, is just as impatient as her subjects for the royal baby to arrive this week because she is going on holiday soon.

Members of the media wait across from St. Mary's Hospital exclusive Lindo Wing in London, July 14, 2013. Cameras from around the world are set to be jostling outside for an exclusive first glimpse of Britain's Prince William and the Duchess of Cambridge's first child.

Clocks are seen in the media pen opposite the Lindo Wing of St. Mary's Hospital, where Britain's Catherine, Duchess of Cambridge is expected to give birth, London, July 16, 2013. The first child of Prince William and his wife, Kate, is due in mid-July, with their saying they have no idea of the sex of the royal baby, who will be third in line to the British throne.

Artist Kaya Mar poses for a photograph with his "satirical" Madonna and Child painting, in the media pen opposite the Lindo Wing of St. Mary's Hospital, where Britain's Catherine, Duchess of Cambridge is expected to give birth, London, July 18, 2013.

A press photographer climbs over ladders to look at his position outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013, where Prince William and wife Catherine's baby will be born. Queen Elizabeth II, it seems, is just as impatient as her subjects for the royal baby to arrive this week because she is going on holiday soon.

A sign reading "please don't feed the photographers" is placed on a barrier inside the media pen outside the main entrance to the Lindo Wing of St. Mary's Hospital, July 9, 2013. Prince William and wife Catherine's baby, which will be third in line to the throne, will be born in the private wing of St. Mary's, where William was born in 1982 and brother Harry in 1984.

A bookmaker presents the latest odds on boys' names outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013. Britain's Prince Charles joked Monday that his son Prince William's baby was, "hopefully," on the way, but wife Camilla went further, saying it could arrive "by the end of the week."

A board showing bookmakers odds on the name and birth date of the royal baby is displayed outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013, where Prince William and his wife Catherine's baby will be born.

Media personnel and ladders are pictured outside the Lindo Wing of St. Mary's Hospital in London, July 17, 2013. Britain's Prince Charles joked Monday that his son Prince William's baby was, "hopefully," on the way, but wife Camilla went further, saying it could arrive "by the end of the week."

Royal supporter John Loughrey poses with his royal baby memorabilia as he waits across the street from St. Mary's Hospital's exclusive Lindo Wing in London, July 17, 2013. Media are preparing for royal-mania as Britain's Duchess of Cambridge plans to give birth to the new third-in-line to the throne in mid-July, at the Lindo Wing.