Max Mumby/Indigo/Getty Images

Prince William has plans this weekend, but they don't include a hospital.

While his nine-months-pregnant wife, Kate, stays back home at the couple's Kensington Palace home, Prince William will go ahead with plans to play in a charity polo match Sunday in Glouchestershire, nearly 100 miles away.

Click HERE for Everything You Need to Know About the Royal Baby

A spokesman for Kensington Palace confirmed to ABC News that the Duke of Cambridge, 31, will play at the Cirencester Polo Club in Gloucestershire, England, Sunday afternoon, as previously planned. The match will benefit two of the prince's charities, Centrepoint and Child Bereavement U.K, and one supported by Prince Harry, who will join his brother at the match.

The news of William's polo-playing plans comes as a disappointment to royal watchers who had hoped for an early birth for Kate and William's first child, said to be due in mid-July.

Send Your Well-Wishes to the Royal Family!

The palace added, however, that William will abandon the match should Kate go into labor in London, another indication of his desire to follow in the footsteps of his father, Prince Charles, in being in the delivery room for the birth.

The palace has positioned a helicopter near the couple's home in Anglesey, Wales, where Prince William is stationed as a search-and-rescue pilot for the Royal Air Force, should William need to quickly fly to London for the birth.

No helicopter will be needed for William this weekend as Gloucestershire is a relatively close 100 miles from London, a roughly two-hour drive. Kate, 31, plans to deliver the couple's baby in the Lindo Wing of St. Mary's Hospital in London, the same wing where both Prince William and Prince Harry were born.

How Kate's Delivery Will Differ From the U.S. Experience

Kate herself acknowledged the unpredictability and waiting game when it comes to having a baby during an appearance at a homeless shelter in April.

"It's around mid-July but apparently babies have their own agenda," Middleton replied to a shelter employee's inquiry about her due date, according to the UK's Mirror.