Zara Phillips and her husband Mike Tindall are expecting their first child.

Zara Phillips and her husband Mike Tindall are expecting their first child. Photo: Hello! Magazine

The British Royal Family is expanding once again, with the Queen’s granddaughter, Zara Phillips, announcing she is pregnant with her first child.

The 32-year-old Olympic equestrian silver medallist and her husband, 34-year-old former English rugby captain Mike Tindall, are expecting the pitter-patter of little feet – which will belong to the 16th in line to the throne – in early 2014.

"Mr and Mrs Mike Tindall are very pleased to announce that Zara Tindall is expecting a baby in the New Year," a statement from Buckingham Palace said.

Mike Tindall and Zara Phillips, who will be 15th in line to the throne following the birth of Prince William and Catherine's child, married in Scotland in 2011.

Mike Tindall and Zara Phillips, who will be 15th in line to the throne following the birth of Prince William and Catherine's child, married in Scotland in 2011.

"The Princess Royal [Princess Anne] and Captain Mike Phillips, Mr Phillip and Mrs Linda Tindall, and members of both families are delighted with the news."

London’s Telegraph has reported Ms Phillips will continue to compete in equestrian events during the early stages of her pregnancy and did so over the weekend before attending Andy Murray’s Wimbledon final.

Ms Phillips and Mr Tindall met in Australia during the 2003 Rugby World Cup and married in Edinburgh shortly after Prince William and Catherine Middleton tied the knot in 2011.

This will be Zara’s mother, Princess Anne’s, third grandchild and the Queen’s fourth great-grandchild.

For now though, the world is eagerly anticipating the arrival of the Queen’s third great-grandchild, Prince William and Catherine’s first child.

The Duchess of Cambridge is expected to give birth on July 13.

As all the fresh royal baby news broke in the UK, Prince Andrew became the first member of the royal family to officially join Twitter.

Within four hours, The Duke of York had attractive more than 6,700 followers and has so far only posted one personal tweet. 

Numerous members of his family have fake, parody accounts including his mother, The Queen and his brother, Prince Charles