Prince Louis might be Kate Middleton and Prince William’s last child.

Royal fans have been waiting for the Duke and Duchess of Cambridge’s fourth baby announcement. However, there are subtle clues suggesting that Prince Louis might not have a younger sibling anymore.

According to parenting expert Victoria Jennings, Middleton is babying Prince Louis and is very doting to him because she believes that he will be her last baby.

“You just want to baby the third child for as long as possible, especially if you’re thinking they will be your last,” Jennings said.

Aside from Jennings’ statement, there have been a number of clues suggesting that Middleton is all good with her three kids.

Middleton suffered severe morning sickness in all of her three pregnancies. In fact, she had to cancel some of her engagements after announcing her third pregnancy due to her fragile condition.

Since Middleton had a difficult time in all of her three pregnancies, she might not want to experience it again.

“I can't imagine Kate will want any more given the ordeal that she goes through every pregnancy. I should think that three children is enough,” one insider told People.

Royal commentator Emily Nash also said that Middleton didn’t enjoy her three pregnancies compared to her sister-in-law Meghan Markle. Middleton had tricky pregnancies while the Duchess of Sussex had no problem conceiving and was “literally glowing.”

In addition, Middleton’s fourth pregnancy could be risky because she is already 37 years old and moms her age are already on the advanced maternal age. At this age, certain genetic risks are more common like the embryo having Down Syndrome. Also, the risk of miscarriage is high at 20 percent.

In related news, it seems that Middleton is indeed already happy and satisfied with Prince Louis. According to body language expert Judi James, the Duchess of Cambridge changed after welcoming her youngest son.

Middleton now sports a relaxed-looking smile that borders on a laugh, with her mouth held open and cheek dimpling on display, and this suggests a more “genuine” delight. In addition, the mother of three looks more relaxed about her two older kids Prince George and Princess Charlotte and enchanted by the very confident and happy-looking Prince Louis.

Prince William Kate Middleton and Prince Louis
Pictured: Prince William and Middleton pose for photographers with their newborn baby boy Prince Louis of Cambridge outside the Lindo Wing of St Mary's Hospital on April 23, 2018 in London. Getty Images/Dan Kitwood