Prince William and Duchess Catherine are set to welcome their third little prince or princess later this month, and as with the couple's first two children, we've no idea on the gender of the baby.
But a slip of the tongue from everybody's favourite royal dad has sent tongues wagging in merriment…
So are we expecting an Alice? Or an Arthur?
Wills, 35, dropped the ball at the Aston Villa vs Cardiff City football game in Birmingham. There, he was pictured fist-pumping and cheering on his team, Villa, who beat the Welsh club one - nil thanks to a goal from midfielder Jack Grealish.
Following the match, the beloved royal took the opportunity to chat with fellow fans.
According to the Mirror, he told one supporter: "I'm going to insist the baby is called Jack", before adding after a pause: "…Or Jackie."
If you ask us, the knee-jerk response is incredibly telling… it's definitely almost certainly very possibily a boy!
The Duke and Duchess of Cambridge have stayed pretty tight-lipped on the details surrounding their third child, other than confirming the new arrival is due sometime in April.
But there's now speculation the world's tiniest royal could arrive at just about any moment. And it's all thanks to a recent flurry of activity outside the Lindo Wing at the Paddington-based St. Mary's Hospital.
Per People Magazine, there are now temporary parking restrictions in place outside the prestigious facility. The signs, now on South Wharf Road, restrict parking from April 9 to April 30 for an "event."
What's more, crowd barriers have also been set up - that's where media and royal enthusiasts will gather in anticipation of the royal bub's arrival.
Take a look for yourself:
As previously reported, the staff at the hospital have also painted the railings outside the maternity ward.
And while this mightn't seem like a big deal, royal baby watchers will know that's where the royal couple will debut their third child to the world just as they did following the births of Prince George in 2013 and Princess Charlotte in 2015.
It's also where Princess Diana debuted Prince William and Prince Harry - cute!
The fresh paint job is so the rail looks picture perfect come crunch-time.
Arthur Edwards, a royal photographer for The Sun, posted a photo progress-shot of the iconic location to Instagram:
To prepare royal watchers for Baby Cambridge, the royal couple have set up a website dedicated to Royal Baby updates, which you can follow here: https://www.royal.uk/baby
You can bet we'll be watching with an eagle eye!