People assume that Will and Kate haven't had a baby simply because they're just not ready yet -- that they haven't decided to hit the "baby-making" lifestage until they adjust to their new home, careers and to being in the spotlight.

But some have questioned the delay, partly out of excitement for them to have a Royal Baby, but also because Kate has not followed recent Royal tradition which included the Queen giving birth to Prince Charles six days before her first wedding anniversary, and Princess Diana giving birth to Prince William more than a month before her first anniversary.

But could there be legal reasons why they're waiting?

An article by Robert Lacey (author of the just-released The Queen: A Life in Brief) on The Daily Beast makes the suggestion that the "real answer may lie in New Zealand, where an obscure committee of lawyers and civil servants is currently rewriting the laws of succession to the British throne."

As of this month's Queen's Speech, the reforms -- which will also allow Catholics to take the throne -- were still underway, reports the BBC.

But as Lacey put it in The Daily Beast:

"The assembled premiers of Canada, Australia, New Zealand and the dozen other Commonwealth ‘realms’ who acknowledge the Queen as Head of State all cheerfully signed up to the idea [that boys should no longer have precedence in the succession over girls], and New Zealand was assigned the job of turning it into practice. A committee was charged with working out the wording that all the other realms -- Britain included -- would incorporate into their new succession statute.

But the committee is still talking, and until they produce their new wording -- and until every one of the sixteen Commonwealth realms has found time in their busy legislative timetables to get the new law onto the statute book -- the status of William and Kate’s firstborn will be in limbo."

If this is the reason, until the law goes on the books there is the possibility that the world might have to wait another couple years until Will and Kate have a Royal baby.

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• Catherine, Duchess of Cambridge, Prince William, Prince Albert II & Princess Charlene of Monaco

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• Catherine, Duchess of Cambridge, Prince William, Prince Albert II &Princess Charlene of Monaco

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• Prince Harry, Prince William & the Duchess

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• Prince Harry, Prince William & the Duchess

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• Kate & Prince William

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• Princess Eugenie, Princess Beatrice, Princess Charlene & Prince Albert II of Monaco

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• Queen Paola & King Albert of Belgium

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• Emperor Akihito & Empress Michiko of Japan

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• Princess Lalla Meryem of Morocco

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• King Mswati III of Swaziland & Inkhosikati LaMbikiza

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• Prince Albert II & Princess Charlene of Monaco

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• King Abdullah II & Queen Rania of Jordan

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• King Letsie III of Lesotho & Queen Mesenate Mohato Seeiso

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• Princess Charlene & Prince Albert II of Monaco

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• Queen Anne-Marie of Greece & Qatar's First Lady Sheikha Mozah

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• Emir of Qatar Sheikh Hamad bin Khalifa Al Thani & Qatar's First Lady Sheikha Mozah bint Nasser al-Missned

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• Queen Beatrix of the Netherlands & Queen Elizabeth

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• Princess Lalla Meryem of Morocco & Queen Elizabeth

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• Henri, Grand Duke & Maria Teresa, Grand Duchess of Luxembourg

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• Crown Prince Alexander II & Princess Katarina of Yugoslavia

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• Queen Anne Marie & King Constantine of Greece

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• Bahrain's King Hamad bin Issa al-Khalifa & Sheikha Sabika bint Ibrahim al-Khalifa

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• Queen Elizabeth II & her Royal guests

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