Can we get another royal baby up in here?! While the world waits for Meghan Markle to give birth to her first child, Duchess of Cambridge Kate Middleton is dealing with a serious bout of “baby fever” — but her husband, Prince William, isn’t totally sure he wants to take the leap for baby No. 4.

“Kate’s suffering from baby fever,” an insider close to Prince Harry told Life & Style exclusively. “She’s not getting any younger and doesn’t want to wait around.”

Kate Middleton with Prince William
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Unfortunately for the 37-year-old mama, the feeling isn’t exactly mutual just yet. “William is hesitant. He thinks it’s enough hard work looking after three kids who are five years and under,” the source revealed. “But I’m sure Kate will manage to change his mind — he’s a great dad and adores children.”

Wills, 36, and Kate already have three beautiful children — Prince George, 5, Princess Charlotte, 4, and Prince Louis, 1 — but it would be nice to see another royal babe in the mix.

“Kate and William are both close in age to their siblings and they want the same family dynamics for their own brood,” the insider explained. “Kate is particularly close to sister Pippa Middleton and would love for Charlotte to have a little sister to look after and play with.”

kate middleton prince william prince louis
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Though we haven’t seen much of the 35-year-old socialite since giving birth to her first child with husband James Matthews in October 2018, we do know Kate and Pippa have long since been a dynamic duo. The sisters rose together in the English social scene before Kate became the illustrious Duchess of Cambridge and, effectively, a royal.

It would be so cute for the Princess to have a little sis to be best pals with like her mom and aunt — unless, of course, her mom ends up having a boy. Well, you can’t exactly plan that one, but either way, we hope for another little royal addition soon.

With reporting by Natalie Posner.