Tick, tock, tick, tock...
But where and how are they passing the time?
The soon-to-be "brilliant" mother, who was laying low at Nottingham Cottage in London, recently relocated to her parents' home in Bucklebury to spend some time with her family before the baby's birth. Kate's parents' home is about 53 miles away from St. Mary's in London—the hospital where she is due to deliver.
Meanwhile, Wills is preparing to hop on a helicopter to be by his wife's bedside. In fact, a source told E! News exclusively that the daddy-to-be canceled Monday night plans with his guy friends just in case Middleton went into labor during that time.
His backing out of plans with the boys is "unexpected," adds a source, so he might be on to something (or just having pre-parental anxiety!) about when the royal baby is planning to make his or her debut.
Meanwhile, Prince Charles and his wife, Camilla, were spotted at the Little Harbour children's hospice at Porthpean, near St. Austell, Cornwall, yesterday, for their annual "Cornwall Week," which includes meeting locals and highlighting the work of worthy causes.
During their visit, the Duchess of Cornwall let it slip that she expects Kate to give birth "by the end of the week."
"We are all just waiting by the telephone," Camilla said in an impromptu speech. "We are hopeful that by the end of the week he or she will be here."
Queen Elizabeth II has been keeping busy by counting swans (no, seriously).
Her Majesty is currently performing the annual tradition of Swan Upping, where she literally counts all of her mute swans.
Lastly, there's the hunky uncle-to-be Prince Harry, who has been pretty MIA throughout the waiting game, however his doppelgänger made a surprise appearance outside the Lindo Wing this morning. His lookalike arrived decked out in full military regalia, alongside a giant bear who sported a Union Jack scarf and crown.
Sweet of him to provide some entertainment during this time, don't ya think?
Make sure to tune in to E! after the royal baby's birth for A Royal Family: An E! News Special