Kate Middleton schedules public return

The Duchess is scheduled to formally welcome President Tony Tan on the 21st October. Photo / AP

The Duchess of Cambridge is set to make her first public appearance since her second pregnancy was announced, Buckingham Palace has revealed.

Kate, who has been suffering from a severe form of morning sickness, has been forced to cancel a series of engagements, among them a state visit to Malta.

But, says the Palace, the Duchess is now well enough to return to work and will, along with Prince William, formally welcome Singaporean president Tony Tan when he arrives in Britain in two weeks time, ahead of a four-day state visit.

The Duchess, whose pregnancy was announced on the 8th September, hasn't been seen in public since August, because of a severe bout of hyperemesis gravidarum which she experienced during the early stages of her first pregnancy.

A series of engagements were cancelled after it was announced that Kate was pregnant and had the illness, which affects one in 50 pregnancies.

In addition to being forced to cancel last month's trip to Malta, which was completed by Prince William instead, she also missed Prince Harry's enormously successful Invictus Games.

Kensington Palace did warn that she may yet be forced to cancel this latest engagement, and has said her appearances are being reviewed on a 'case by case' basis.

Watch: Prince William 'thrilled' by news of a second baby

- Daily Mail