Kate Middleton Due Date: Prince William Expected to Play Polo Match While Duchess Can Deliver Any Day

Although Prince William is expecting the arrival of his baby any day now, the 31-year-old still plans on joining his brother Harry in a charity polo match.

The match will take place at the Cirencester Polo Club in Gloucestershire, England on Sunday afternoon. The funds raised over the weekend will benefit Harry's two causes, homelessness charity Centrepoint and Child Bereavement UK, along with Harry's cause, WellChild.

"Clearly, if the Duchess gives birth before, he won't be there," a source told People. 

The palace has a helicopter ready to go near the royal couple's home in Anglesey, Wales in case the baby arrived early while William was on Royal airforce duty. 

William is reported to have been keeping up with his work in his search and rescue team in North Wales while Middleton has been splitting her time between her parents' home in Bucklebury and her place in Kensington Palace.

The Duchess of Cambridge is due mid-July, and Britain is on full-blown baby watch. Photographers are camped outside of the hospital and stores are pushing their baby products, anxiously awaiting the baby's arrival.

The royal baby is said to be delivered in the private Lindo wing of St. Mary's Hospital in London, the same place the Prince was born.

However, during an appearance at a homeless shelter this April, Middleton brought light to the unpredictability of having a baby.

"It's around mid-July but apparently babies have their own agenda," Middleton said, according to the UK's Mirror.