She's already a mother-of-three but the Duchess of Cambridge could soon be adding to her royal brood, according to the bookies!
The odds have been slashed on Kate and Prince William welcoming their fourth child in 2019.
Making their predictions for the year ahead, many bookies had declared short odds on the royal couple expanding their family.
At the end of last year, betting site Ladbrokes had odds of just 7/2 for William and Kate revealing they are expecting their fourth child by the end of 2019.
The latest betting definitely suggests there could be an announcement.
Alex Apati of Ladbrokes said: "Baby mania is in full swing in the Royal Family right now so it's no surprise to see odds on a fourth Will and Kate baby so short."
Now the odds have been slashed again, with some believing this could be a sign the Duchess, who turned 37 this week, is already pregnant again.
Some bookmakers are offering odds as low 2/1 that we will be hearing the pitter patter of royal feet again soon.
A bookmakers.tv spokesperson told the Sun Online: "The odds of Kate and Wills sharing some good news soon have taken another plunge.
"The latest betting definitely suggests there could be an announcement around the corner, and when it comes, bookies should brace themselves for the biggest royal betting frenzy of all time."
The Duke and Duchess of Cambridge already have three adorable children - Prince George, five, Princess Charlotte, three, and eight-month-old Prince Louis.
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Their fourth child would be sixth in line to the throne, ahead of Prince Harry, who will welcome his first baby this year - or two as some believe Meghan is expecting twins!
Kate's sister, Pippa Middleton, also had her first child in 2018, so there's certainly a baby boom happening in Kate and Will's family! When they turn out as cute as George, Charlotte and Louis, who can blame them!
Will the Duke and Duchess of Cambridge have a fourth child? Leave us a comment on our Facebook page @EntertainmentDailyFix and let us know what you think!