The Name Elizabeth Is the New Frontrunner If Meghan Markle and Prince Harry Have a Baby Girl

Just five days ago, Diana held the top spot for a girl's name, with 6/1 odds

Over the course of Meghan Markle’s pregnancy, the name Diana has been a crowd favorite in the Baby Sussex name guessing game. Many fans have speculated whether the couple will honor Harry’s late mother, Princess Diana, if they end up having a baby girl.

But this week, U.K. bookies Ladbrokes have announced a new name as the top contender: Elizabeth. An influx of bets favoring the name (a tribute to the reigning Queen Elizabeth) forced “bookies to cut odds from 16/1 to just 6/1,” according to Ladbrokes.

Current standings list Diana in second place with 8/1 odds. Although just five days ago, Diana held the top spot for a girl’s name, with 6/1 odds.

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The royal mom-to-be has previously revealed that she and Harry have decided not to find out the sex of their baby ahead of time, but fans are frantically placing best as the Duchess of Sussex is expected to give birth this month.

According to Ladbrokes, the switch-up in name favorites is likely related to the possibility of the royal baby being born on, or close to, Queen Elizabeth’s birthday on April 21.

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“Meghan’s due date is desperately close to the Queen’s birthday and the stars might just align for the latest royal arrival,” Ladbrokes said in a statement.

Anticipation for the newest royal family arrival has also sparked conversation about the baby’s title. If the baby is a boy, his title could become Earl of Dumbarton, the secondary Sussex title. He would later inherit the dukedom, as it’s tradition for the eldest son of a duke inherits his father’s title, William Bortrick, chairman of Burke’s Peerage, previously told PEOPLE.