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Is Kate Middleton Having Twins?

10/01/2014 04:17 EDT | Updated 10/01/2014 04:59 EDT
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Kate, Duchess of Cambridge attends a ceremony at St. Symphorien Military Cemetery in Mons, Belgium, Monday, Aug. 4, 2014. The cemetery was established by the German Army as a final resting place for British and German soldiers killed at the Battle of Mons. Among those buried is Pvt. John Parr of the Middlesex Regiment, the first British soldier to be killed in action on the Western Front. (AP Photo/Francois Lenoir, Pool)

If gamblers have anything to say about it, the Duchess of Cambridge (or as we still love to call her, Kate Middleton) might be giving birth to twins in 2015.

According to U.K. paper Express, betting firm William Hill suspended all bets on the Duchess' pregnancy on Monday evening following an influx of bets for twins. The odds, which started at 20-1 went down to 9-1 within 75 minutes, reported the firm.

"With any other market I would say that people know,” William Hill spokesperson Rupert Adams told the paper.

As Kate continues to suffer from hyperemesis gravidarum, this severe type of morning sickness can be associated with multiple births, according to the Cleveland Clinic. Rumours of twins have been around since her pregnancy was announced in September.

However, Kate also experienced this type of morning sickness when she was first pregnant with Prince George, which increases the likelihood of it happening again.

Twins have not born to a mother of a future monarch since the 15th century, according to the Daily Mail. However, both parents' genetics tell a different story.

As the Daily Beast noted in 2012, during the Duchess' first pregnancy (and the first emergence of twin rumours), one of William's maternal great-grandfathers, Lord Fermoy, was a twin, and his uncle Charles Spencer has identical twin daughters. Kate's paternal grandmother, Valerie Glassborow, was also a twin.

Though no due date has been announced by the royal family, the new baby (or babies?) is expected to arrive around the end of April.

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