Meghan Markle
Meghan Markle's posture may reveal if she's pregnant or not. Pictured: Markle and Prince Harry stand for the National Anthem ahead of the '100 days of peace' concert to commemorate the centenary of the end of the First World War at Central Hall Westminster on Sept. 6, 2018 in London. Getty Images/Geoff Pugh

Meghan Markle's posture may give a huge clue if she's expecting or not.

A number are speculating that the Duke and Duchess of Sussex are already expecting for their first baby. According to a royal expert, fans can confirm this by observing the former "Suits" actress' posture.

"Actually, I did have a conversation with someone about this the other day," Robert Jobson said (via Express). "They said it is all to do with posture, and I said, 'well she looks too thin', what do I know? I certainly don't know if she is pregnant, I am not a doctor. But, this lady was saying her posture."

According to Jobson, Markle's fans should watch out if there are any changes in her posture or the way she is standing because that's what his source was saying. Jobson said that the women who gave that idea to him "was a maternity nurse."

Meanwhile, Myka Meier suggested another way to check if Markle is indeed pregnant or not. The royal etiquette expert recommended that fans look out for the Duchess of Sussex's hair.

"The one thing that might be interesting is her hair," Meir said. "We don’t know what she does to treat her hair now but it is likely she uses a keratin or a Brazilian treatment to straighten it. As soon as she gets pregnant she will no longer be able to use those same products, which could be very interesting."

According to Meier, if Markle won't be able to use hair straightening products, she will likely wear her locks in a bun. Thus, her hairstyle can be a tell-tale sign if she's expecting or not.

A number of fans are convinced that Markle is already pregnant following her last engagement with Prince Harry. In the said outing, the duchess stunned in her blue dress. However, many noticed that her bust and stomach appeared to be larger than usual.

In addition, Markle's mom, Doria Ragland, is reportedly making secret visits to her daughter and is taking nanny duties which only intensifies the rumors. Ragland reportedly trains in a facility that is half an hour away from her home to avoid attracting unwanted attention. She has already learned a variety of things including breastfeeding, lactation, baby care, CPR and first aid.