This is why the Royal baby is more likely to be a boy, according to science

And the big question on many royal fans’ lips is “will Meghan have a boy or a girl?”

Newcastle University found there was a statistical link between the gender of a man’s siblings on whether they were more likely to have a boy or a girl baby themselves.

Scientists found that those with more male siblings, like Prince Harry, were more likely to father boys.

So could we see a new little prince next year?

Research scientist Corry Gellatly said: "We now know that men are more likely to have sons if they have more brothers but are more likely to have daughters if they have more sisters. However, in women, you just can’t predict it."


  • Men determine the sex of a baby depending on whether their sperm is carrying an X or Y chromosome.
  • The research demonstrates that it is likely men carry two different types of allele, which results in three possible combinations in a gene that controls the ratio of X and Y sperm.
  • Men with the first combination of alleles, known as mm, make more Y sperm and have more sons.
  • Men with mf alleles, produce roughly an equal number of X and Y sperm so have nearly an equal number of sons and daughters.
  • Those with ff alleles produce more X sperm and have more daughters.

Source: Newcastle University


Researchers studied 927 family trees dating back to 1600, containing half a million people, to compile the data.

While there could be a link between brothers having sons, Prince William has had a mix with his own kids.

Kate Middleton gave birth to Prince George in 2013, Princess Charlotte in 2015 and Prince Louis earlier this year in April.

Bookmakers Ladbrokes make a baby boy the most likely outcome at 10/11 while even-money says Meghan gives birth to a girl.

Alex Apati of Ladbrokes said: "It's fair to say this one has been on the cards for some time but nevertheless we're delighted for Harry and Meghan and all eyes will now turn to what they'll name their first born!"

According to Betfair, the top baby names are Diana, Arthur and Alice, which all have odds of 12/1.

A spokesperson said: "At this stage Diana, Arthur and Alice, which was favourite at different stages for Kate and William’s babies, are the 12/1 front runners.

"However, with months until the baby is born, those odds will shorten, change and other names will come to the forefront, so watch this space."


  • 12/1 – Diana
  • 12/1 – Arthur
  • 12/1 – Alice
  • 16/1 – Edward
  • 16/1 – Elizabeth
  • 18/1 – James
  • 20/1 – Victoria
  • 25/1 – Henry
  • 25/1 – Oliver
  • 25/1 – Thomas
  • 30/1 – Albert
  • 30/1 – Grace
  • 33/1 – Mary
  • 33/1 – Olivia
  • 33/1 – Alexander
  • 50/1 – Harry
  • 50/1 – Susan
  • 66/1 – Tyrone
  • 66/1 – Emily
  • 66/1 – Carol
  • 66/1 – Sophie

Meghan Markle and Prince Harry's first child is due in spring 2019, but the couple are yet to reveal the exact date.

Kensington Palace announced the news on October 15, 2018, five months after the couple married at St George's Chapel, Windsor Castle.

The confirmation came after weeks of fan speculation about a potential pregnancy.


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