Paddy Power claimed the flurry of bets placed on the couple already having welcomed a baby girl suggested “someone knows something”.
The surge of Brits having a flutter has now forced the firm to close the books.
“We’ve suspended betting on which day Harry and Meghan’s baby will arrive following a huge increase in wagers this evening which indicate to us that someone knows something – and perhaps the child is already born,” a Paddy Power spokesman said.
“That, combined with the rumours and speculation has us convinced that the royal arrival has already happened and if the betting is anything to go by, it’s almost certainly a baby girl.”
The betting suspension follows further speculation earlier this week that Prince Harry’s diary reveal could have hinted that the royal baby is already here.
The Duke of Sussex is set to visit the Netherlands next week from 8 – 9 May, sparking rumours that he will already be a father by that point.
And royal fans on Twitter have even suggested that Baby Sussex might have already made an appearance and snuggled up with his parents at Frogmore cottage.
— Where’s Bucky? 🤷🏽♀️ (@ThenaWasHere) May 3, 2019
However, Buckingham Palace revealed to Yahoo UK that the Duke is planning on going to the Netherlands, but a decision will be made closer to the time because they don’t know when the baby will arrive.
Bump watchers also believe the Queen’s visit to Forgmore House over the Easter weekend could have been another hint that the baby is here, and was meeting his or her great grandmother for the first time.
Meghan’s make-up artist Daniel Martin also fuelled speculation about the imminent arrival of Baby Sussex with a recent Instagram post.
He announced that he will be appearing at The Makeup Show in New York on May 5, 2019.
Though it is believed that US-based Daniel paid a visit to the UK, after posting photos of scenes around Windsor on his Instagram Stories.
If he is set to head back to New York before May 5, it could suggest that the baby is either already here or could be any day.
Fans also pointed to Meghan’s mum Doria Ragland’s arrival in the UK as a sign the couple may have already welcomed their baby boy or girl.
While Kensington Palace have never revealed a due date, Meghan told well-wishers in Birkenhead in January that the baby was expected to arrive at the end of April or beginning of May.
So news of the birth could be announced any minute now.
Buckingham Palace announced last month that Meghan and Harry have taken the personal decision to keep details around the birth private and would like to spend time with their little one before sharing images with the world.
“Their Royal Highnesses have taken a personal decision to keep the plans around the arrival of their baby private,” the memo read.
“The Duke and Duchess look forward to sharing the exciting news with everyone once they have had an opportunity to celebrate privately as a new family.”
Royal reporters have been assured that they will be kept informed of any news and since no confirmation has been given by Harry and Meghan’s reps that they’re already parents, royal baby watch continues.
Watch this space…