The Duchess Of Cambridge isn't due to give birth until July.
But William & Catherine's unborn child is already making headlines, prompting one website to create a Royal baby sweepstake game.
As speculation over to the sex, name and weight of the young royals' offspring continues, website Firebox.com offers users the opportunity to make a bet.
Their Royal Baby Sweepstake package, which is priced at £11.99, is apparently "ideal for offices, social clubs and fanatics of pre-natal predictions."
It's also described as being "your ticket to monetising the miracle of childbirth, while still celebrating with those kids from Cambridge."
But while fans of The Duchess Of Cambridge, who is said to be recovering well from acute morning sickess, may be riled by the prospect of making a game of her pregnancy - they're not the only ones cashing in.
Bookies William Hill are offering odds on the royal tot, on a range of factors including eye colour, weight and time of birth.
Baby names are proving the most popular betting factor, with William's late mother's name, Diana, with odds currently at 6/1 and Elizabeth with odds of 8/1.
The baby - who will be third in line for the throne - is due in July and tens of thousands of pounds have already been spent on placing bets on the royal heir.
It was recently announced that Catherine, 31, expects to resume official engagements "in the near future".
A St James's Palace spokesman said: "Their Royal Highnesses the Duke and Duchess Of Cambridge are delighted to confirm they are expecting a baby in July. The Duchess' condition continues to improve since her stay in hospital last month."
In the meantime, the expectant parents are currently enjoying a quiet family holiday with Catherine's parents on the luxurious Carribean island Mustique, where the royal couple are believed to be renting a $35,000 per week villa complete with an infinity pool, games room and stunning views of the Caribbean Sea.
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