Prince Harry and Meghan Markle
Meghan Markle's baby may be arriving in April, according to Bookies odds. Pictured: Prince Harry and Markle arrive at Westminster Abbey to attend a service to mark the centenary of the Armistice in central London on Nov. 11, 2018. Getty Images/Tolga Akmen

Meghan Markle is giving birth to her and Prince Harry's first baby next year. But which month will the next royal baby actually arrive?

According to Amalie Henden, a journalist for Express, bookies odds are in a frenzy over one particular month. Many believe that the Duke and Duchess of Sussex's baby is due in April. When the palace announced that Prince Harry and Markle are expecting their first baby, they didn't announce how far along the royal is, but only said that she's due in spring of 2019.

"Their Royal Highnesses The Duke and Duchess of Sussex are very pleased to announce that The Duchess of Sussex is expecting a baby in the Spring of 2019," Kensington Palace announced. "Their Royal Highnesses have appreciated all of the support they have received from people around the world since their wedding in May and are delighted to be able to share this happy news with the public."

Spring in the UK will start March 20 and ends June 21. Bookies Corals have slashed the odds of Prince Harry and Markle welcoming their firstborn in April to 6/4.

"It's sure to be an exciting spring for Royal fans and we make April the favourite for the month that Meghan and Harry's new arrival is born," Coral's Harry Aitkenhead said. "If that is true, the new baby could well share a birthday with some other Royals."

Prince Harry and Markle's upcoming baby will be the seventh in line to the throne after his or her father. The baby will also be Queen Elizabeth II and Prince Philip's eighth great-grandchild.

Meanwhile, Michael Jackson's former bodyguard, Matt Fiddes, recently commented that the Duchess of Sussex needs to tighten her security now that she's pregnant. Fiddes advice comes after Prince Harry and Markle's Commonwealth tour.

"It is more dangerous now that she is pregnant for sure," Fiddes explained. "I know paparazzi and they can be so tough when they want to get something. There have been instances where they have knocked people over."

"They will 100 percent hire more security for Meghan, I have seen it with other celebrities," Fiddes added. "As they become more and more pregnant, there will always be more demand. She will restrict her Royal engagements and increase her security massively."

In other news, the Duke and Duchess of Sussex are reportedly planning to move out from the palace before welcoming their baby. A source claimed that Prince Harry and Prince William will soon have separate offices and lives. Thus, it only "makes sense for them to live further afield."