She’s known for doing things her own way and not really bending to some of the assumed rules of being a member of the Royal Family. However, another way Meghan Markle may have broken royal protocol might have been revealed in her editor letter for the September issue of British Vogue.

According to the Daily Mirror, some are beginning to suspect that while composing her letter as co-editor for the issue, the 37-year-old Duchess of Sussex accidentally revealed a way she broke royal tradition while she was expecting her first child, Archie Harrison. According to the speculation, Markle may have revealed that she and Prince Harry actually knew they were having a boy before he was born.

“I was about five months pregnant when this process began, and by the time you hold this issue in your hands, my husband and I will be holding our three-month-old baby boy in ours,” she wrote in the column.

This led to speculation the royals knew they were having a boy, which is a departure from tradition. Royal couples reportedly don’t usually find out the sex of their babies until they are born, though there isn’t a steadfast rule regarding it.

Some believe that mentioning their son in the letter is an indication that the couple knew they were having a boy, despite stating they wanted to keep his gender a surprise throughout the pregnancy. Whether or not they knew, they didn’t reveal that information to the public until after his birth.

Of course, it’s also noted that while Markle mentions being five months pregnant in the letter, that doesn’t mean she was when she drafted the letter. She could have also written the letter after the rest of the editing process—and after her son’s birth.

Regardless of whether she knew she was having a boy or not, it’s just another example in a long line of things the Duchess if often criticized about, something that she’s been defended against many times.

Meghan Markle
Meghan Markle, the Duchess of Sussex is pictured attending a panel discussion convened by the Queen’s Commonwealth Trust on March 8, 2019 in London. Daniel Leal-Olivas - WPA Pool/Getty Images