But the standby helicopter ready to rush the duke to the duchess' side has now left the Anglesey farmhouse where it has been stationed since Friday. It was last seen Wednesday afternoon.
Does this mean Kate's in labor?!
Not quite yet, but it could indicate that Will has left Anglesey to be with his wife.
Earlier this week, Prince William was putting in extra time as a search-and-rescue pilot at RAF Valley in Anglesey before he takes paternity leave.
While a helicopter was on standby in case Kate goes into labor—which will allow Will to travel to London in 90 minutes (as opposed to almost five hours by car)—the helicopter has now disappeared, although local sources do not believe the missing helicopter indicates the soon-to-be mama is ready to give birth.
"It [the helicopter] was there yesterday and now it is not there," a local source exclusively tells E! News. "It could just be that William knows we are watching that helicopter and trying to work out if Kate is in labor because of it. But for whatever reason it has been moved."
Sources say Will was last spotted in a local convenience store Monday. There have been no other indicators Will is at his Anglesey home, except for his presence at work where, up until today, there has been extra security. Kate's location is currently unknown.
On Monday, the duchess managed to sneak by the throng of ever-growing shutterbugs for a top-secret hospital checkup.
Meanwhile the media (and the whole world) is on royal baby watch as Kate could go into labor any day.
Once the baby arrives, the announcement will be made public with a notice placed on the gates of Buckingham Palace.
Can't wait to see the little one!