Queen Elizabeth decided to hide her pregnancy with Prince Charles for as long as possible.

Unlike Princess Diana, Kate Middleton and Meghan Markle, Her Majesty didn’t release a statement after she found out that she was pregnant with her first child. But the Buckingham Palace released a cryptic statement about the monarch.

“Her Royal Highness Princess Elizabeth will undertake no public engagements after the end of June,” the statement read.

At that time, royal fans were unsure why the Queen would not be making any public appearances until the end of June. Her Majesty decided to stay at home after her first trimester so she could ensure that she will have a healthy pregnancy.

And since she was last seen in public four months before Prince Charles was born, this meant that the 93-year-old growing baby bump wasn’t very visible back then either. In fact, there is not a single photo of the Queen with her growing baby bump while she was pregnant with Prince Charles.

But after Prince Charles was born on Nov. 14, 1948, a statement was released by the palace. But even then, the Queen still didn’t step out with her bundle of joy immediately. It was only on Dec. 15 of the same year that she and Prince Charles were photographed together at the latter’s christening.

What the Queen did years ago was very different from what the royal moms have been doing in recent years. After Princess Diana and Prince Charles learned that they were expecting their first and second child, they released a statement via the palace.

During all three of her pregnancies, the Duchess of Cambridge also opted to announce that she was expecting. However, Prince William’s wife had to wait until after the first trimester before she shared the news with the world.

Last year, Markle tried to hide her baby bump while in Australia for her overseas tour. Hours later, the palace announced that she’s also 3 months pregnant.

Prince Charles and Queen Elizabeth II
Queen Elizabeth II and Prince Charles pose with officers during an official visit to the Household Cavalry Mounted Regiment at Hyde Park Barracks on October 24, 2017 in London. Getty Images/Chris Jackson