Reports suggest Kate's expecting again, despite having three kids already with Prince William.
Shockingly, even the late Queen Elizabeth knew about the pregnancy before she passed.
Kate's already told King Charles the good news - talk about keeping it in the family!
During her return to work, Kate met with the Chief Executive of the Royal Foundation at Windsor Castle.
With all this excitement, it's clear that Kate's still living her fairytale life as a beloved member of the royal family.