Kate Middleton is already the mother of Princes George and Louis and Princess Charlotte. Although she had a hard time with her pregnancies the Duchess of Cambridge has always been open to having a big family.

Royal fans are convinced Kate and Prince William are trying for another baby. Despite no official statement from Buckingham Palace many believe the duchess is pregnant with their fourth child.

Kate's pregnancy speculation has been going on for a long time and it seems it is not going to stop soon. Even though royal pregnancies are never kept secret people always want to know about it before any official announcement.

According to a body-language expert, Kate and William's "togetherness" during recent public engagements is a signal that a "new royal baby" is on the way. Judi James analyzed the couple and said there was a big possibility they are expecting baby number four.

"The team vibe was also there in the mirrored poses though when Kate mimicked her husband's 'fig-leaf pose' with his hands clasped in front of his torso. Their togetherness signals suggest a new royal baby but the fig-leaf isn't one of them, sadly! Their other touches and tie signs would be more suggestive!" she said.

In an earlier report, James said that Kate and William are showing a "slow but steady increase" of PDAs in recent years. Although the duke and duchess have always been effortlessly sweet in public many have noticed that they look even more in love lately.

Meanwhile, a royal expert previously claimed that she had two clues to prove that Kate is pregnant. Aranzazu Santos Lopez explained that every time the duchess is pregnant she changes things up. She pointed out that William's wife has a different hairstyle.

Santos Lopez added that Kate was taking time off. Since the duchess had difficulties during her previous pregnancies, the royal expert took this as a sign that she is taking a break so she could get enough rest.

William, Kate and Buckingham Palace neither confirmed nor denied any pregnancy.