Kate Middleton has been sparking rumors that she could be pregnant with her fourth child.

Star magazine recently claimed that the Duchess of Cambridge dropped a telling clue that she could be expecting another baby.

During one of her royal engagements with Prince William, Middleton seeming expressed her craving for pickled onions. And she was very particular about how she wanted it done.

“Will was thrilled when Kate said she was hungry and asked for a pickle sliced thinly on well-done toast. An SOS was dispatched to the kitchen, but staffers found themselves in an actual pickle; they didn’t have a single one,” a source said.

According to Us Weekly, Middleton ordered a pizza shortly after giving birth because she wanted to eat spicy sausage and prosciutto.

However, it is important to note that Middleton isn’t pregnant. And there are also other telling signs that may suggest that she’s expecting other than her food cravings.

According to Express, Prince Charles may also be instrumental in letting the public know that Middleton is pregnant. After all, his facial expression is another telling sign.

“As Prince Charles has got older, he appears to have relaxed the rules on PDA. We’ve seen him doting on Louis in public in a way that he never did with his own boys or George and Charlotte. With Camilla beaming at his side he might just go ‘the full soppy’ if he’s seen in public (with a pregnant Kate),” body language expert Judi James said.

Prince William’s facial expression could also confirm Middleton’s pregnancy, according to the body language expert.

“William would be a very poor poker player as his facial expressions are often a giveaway, especially when it comes to any good news. Unlike his dad, he might manage to mask negatives like anger or frustration, but watch out for a lot of suppressed smiling if/when he is sitting on a fourth baby secret. Trying to suppress a smile leads to a softened eye expression and narrowing and crinkling of the eyes, plus a pushing together of the lips, but the smile breaking out at the corners,” she said.

However, it is seemingly unnecessary to speculate on whether or not Middleton is pregnant. If she is, the confirmation will come straight from her, Prince William, or Kensington Palace.