London, UK -- With likely just hours to go until the Duchess of Cambridge gives birth, last minute bets are flooding into bookmakers on what the third-in-line to the British throne will be called.
"Royal baby betting is booming. Money is coming in by the pramload. We've taken $46,000 this morning alone," said Rory Scott, spokesman for bookies Paddy Power.
Bookies favorite for what the baby will be called if it is a girl is Alexandra at 7-4, which is the Queen's middle name and that of Prince William's godmother, Princess Alexandra. The second favorite girl's name is Victoria at 5-1.
Those taking a punt on what a baby boy would be called are heavily backing George at 5-1 and James at 8-1.
Betting is going on all sorts of things surrounding the royal baby, such as its sex, name, hair color, and weight. It combines two British passions: gambling and the royal family.
"We've already taken about $613,480. I mean, that's a lot of money on a baby. It's not the grand national, it's not the FA Cup final, but for a novelty market, it's definitely going to be one of the biggest of the year," said Scott.
There was a strong police presence outside the Lindo Wing and hundreds of TV cameras, reporters and photographers from all corners of the world pressed into media pens.
Buckingham Palace will not be giving any updates on the Duchess's condition. The next official news the world will hear is when the baby is born.
The announcement will be made on an official letter which will be displayed on the forecourt of Buckingham Palace on an easel.
Prince William, Catherine and the baby are due to pose for photographs on the steps of the Lindo Wing before they leave the hospital and head to Kensington Palace for a few days.