What will happen after the birth?
In keeping with tradition, as she leaves St. Mary's Hospital, Catherine is expected to appear on the steps of the building with her newborn, as Princess Diana did with Princes William and Harry.
The next stop for the new family may be the Queen's estate at Sandringham in Norfolk, Balmoral in Scotland, or even the Middletons' home village of Bucklebury, in Berkshire, but exactly where the baby will spend its first weeks is being kept a closely guarded secret.
In the longer term, the royal couple plan to set up home at Kensington Palace, but they are not expected to move in there immediately.
Catherine and William are said to be set on giving their baby as normal an upbringing as possible, and are reportedly not planning to employ a nanny -- though of course they have plenty of other staff to lend a hand.
Considering the duchess came from a relatively ordinary background, it is not surprising they would want the same for their child -- as much as is feasible for a future British monarch, of course.