Prince George is likely to be joined by a little brother, according to the latest odds from bookies.
Ladbrokes make it 4/5 that the Duchess of Cambridge gives birth to another boy in early 2015.
James is the early favourite to be the name of choice at 6/1, with Arthur and Victoria following just behind at 8/1.
Charles, Thomas and Alexandra are also high up in the odds.
Early predictions on Royal births are not always accurate - the odds on George were 10/1 prior to the future King's birth last year.
David Beckham has given some friendly advice to the Duke and Duchess of Cambridge ahead of their new arrival - get some more sleep!
After it was announced the Duchess of Cambridge is pregnant with her second child we look back at her last pregnancy spent in the spotlight.
Kate and William's second child will join second-born Royal children as being known as the "spare to heir".