Hundreds of outlets from across the world have been camped outside the private Lindo Wing at the St. Mary's Hospital in Paddington, London, as the globe eagerly counts down the days until Baby Cambridge arrives.
Kate, meanwhile, is thought to be staying at her parents' house in Berkshire as she awaits the due date.
However, according to the Daily Telegraph, a back-up plan is in place in case Kate's labour progresses quickly and she doesn't have time to get to London.
A source told the newspaper if that happens, the Duchess of Cambridge could deliver her first child at the nearby Royal Berkshire Hospital, which has no private rooms, just public wards.
The insider, however, said this was just an "extreme" option and the intention is for Kate to deliver in London.
The Duke and Duchess of Cambridge have never confirmed a due date for their child, but several media outlets suggested it was 13 July, meaning she could now be overdue.
The Queen, the Prime Minister and members of the senior royal family and Middleton family will be the first to learn of the birth.
A royal aide will deliver the news to the public by taking the birth notice from the hospital to Buckingham Palace, where it will be displayed on the forecourt.
Kate and William have chosen not to learn the sex of their child before the birth, but it has been confirmed the baby will be given the title Prince or Princess of Cambridge.
While Kate has stayed out of the public eye since Trooping The Colour in June, other members of the royal family have been carrying out engagements as normal and, inevitably, been asked about the royal arrival.
Earlier this week, Camilla, Duchess of Cornwall, told a member of the public the royals were waiting by the telephone in the hopes of a birth this week, while yesterday The Queen told a 10-year-old school girl she was hoping Kate delivered in the next few days because she's off on holiday next week
Kate Middleton's pregnancy in pictures: