22 July 2013
Last updated at 03:26 ET
The Duke and Duchess of Cambridge were married in April 2011. Since then they have taken part in numerous public events, including a tour of North America, Canada and South East Asia, but it was the announcement that the couple were expecting a baby which sparked worldwide excitement.
The announcement was made in December, when the duchess was rushed to hospital with acute morning sickness.
Only a few days earlier she had been playing hockey at her old prep school in Berkshire, where she once captained the hockey team.
The duchess continued with her public engagements up until the end of June. In March, she and her husband visited Glasgow and her baby bump was just beginning to show.
The couple have commissioned extensive refurbishment work at an apartment in Kensington Palace, at the cost of £1m, which they plan to move into later this year.
Out and about around the country, the duchess still got stuck in to her duties - one of which was helping to plant a willow tree with comedian John Bishop at a school in Wythenshawe, Manchester.
Prince Harry, Prince William and the duchess tried their hand at magic on the set of the Harry Potter films.
The Prince of Wales will become a grandfather for the first time when the baby arrives.
The duchess's final solo royal engagement was naming the Royal Princess cruise ship, moored in Southampton. The duke and duchess decided not to find out the sex of their baby ahead of the birth.
All eyes were raised to watch an RAF flypast for the Queen's official birthday on 15 June. It also marked the Duchess of Cambridge's final public appearance before the birth.
The press have been camped outside the private Lindo Wing of St Mary's Hospital in Paddington, west London, in anticipation of the birth, for weeks.