Kensington Palace have confirmed the Duchess of Cambridge is due to give birth in April 2018.
Kate and William, both 35, announced that they were pregnant back in September - but as they didn't confirm exactly how far gone Kate was, the due date remained unclear. Mahira, who described the royal encounter as "mind-blowing", said: "I asked her what's it like to be a princess, because I'd like to be one, and she said her favourite thing was meeting special people like us". As a matter of fact, the Duchess of Cambridge managed to look like she was enjoying herself as a playfully laughed with Paddington Bear in front of her fans with Prince William by her side.
The impromptu exhibition happened as Kate, the Duke of Cambridge and Prince Harry waved off a group of children selected by members of the royal trio's Charities Forum - many going through hard times in their lives.
Our essential brief on culture, the news, and more. Is it nice to see Kate recovered from her morning sickness?
The duchess has again been struck down by Hyperemesis Gravidarum, the extreme sickness that affected her first two pregnancies.
Sure, Kate Middleton is pregnant, but it's not like she hasn't gone through with this before.
On Monday, Kate made a surprise appearance alongside William and Prince Harry at a children's charity event.
Kate also attended a Buckingham Palace reception on October 10 to mark World Mental Health Day.
Now that the date of their third child's arrival has been confirmed to be in the spring, it's likely that Kate will be in her second trimester when the pair make the trip.
Congrats to William and Kate!