The Duchess of Cambridge has carried out her final official engagements before taking maternity leave ahead of the birth of her third child, due in April.

Royal commonwealth visit
Kate looked glowing as she arrived to watch wheelchair basketball during a SportsAid event at the Copper Box in the Olympic Park, London (Chris Jackson/PA)
Royal commonwealth visit
The duchess was met by an enthusiastic crowd on her arrival (Jonathan Brady/PA)
Royal commonwealth visit
She was joined by the Duke of Cambridge (Chris Jackson/PA)
Royal commonwealth visit
It was all smiles as the duchess met some of those waiting outside (Chris Jackson/PA)
Royal commonwealth visit
Inside the Copper Box, Kate looked on as William tried his hand at wheelchair basketball (Chris Jackson/PA)
The Duke of Cambridge tries his hand at wheelchair basketball (Chris Jackson/PA)
The duke took aim… (Chris Jackson/PA)
Royal commonwealth visit
… before sinking a basket… (Chris Jackson/PA)
Royal commonwealth visit
…much to the delight of the watching Kate (Chris Jackson/PA)
Kate took part in a Commonwealth Quiz in which athletes, coaches and supporters were questioned on their knowledge of the Commonwealth during the SportsAid event
The couple also took part in a Commonwealth Quiz in which athletes, coaches and supporters were questioned on their knowledge of the Commonwealth during the SportsAid event (Chris Jackson/PA)
The Duke and Duchess of Cambridge watch preparations for a Commonwealth Big Lunch at St Luke's Community Centre in London
William and Kate later visited St Luke’s Community Centre in London, where they watched preparations for a Commonwealth Big Lunch (Victoria Dawe/The Big Lunch/PA)
The Duchess of Cambridge taking part in preparations for a Commonwealth Big Lunch at St Luke's Community Centre, London, London (Paul Edwards/The Sun/PA)
The Big Lunch project aims to encourage as many people as possible to sit down to a meal with members of their community once a year (Paul Edwards/The Sun/PA)
The duchess’s due date has not been released (Chris Jackson/PA)
It was the final official engagement for Kate before she takes maternity leave (Chris Jackson/PA)