\"And Louis' getting bigger, I can't believe he's like seven months,\" she added. \"He's getting to be a big boy.\"

The fan then asked if she was excited about Harry and Meghan's baby, who will be the couple's first child and is due in the Spring of 2019.

\"Absolutely!\" Kate said. \"It's such a special time to have little kiddies. And a cousin for George and Charlotte as well, and Louis. It'll be really special.\"

\"PHOTO:
Chris Jackson/WPA Pool/Getty Images
PHOTO: Meghan Markle and Catherine, Duchess of Cambridge, attend the first annual Royal Foundation Forum held at Aviva, Feb. 28, 2018, in London.
>

Kensington Palace announced last month that Harry and Meghan -- the Duke and Duchess of Sussex -- are expecting their first child. The pregnancy was made public shortly before the couple embarked on a two week tour of Australia and neighboring countries.

The expectant parents announced earlier this week that they have decided to move to Frogmore Cottage on the grounds of Windsor Estate, about 30 miles from London and their current home in Kensington Palace.

\"PHOTO:
Chris Jackson/Getty Images
PHOTO: Prince Harry, Meghan Markle and Catherine, Duchess of Cambridge attend the first annual Royal Foundation Forum held at Aviva on Feb. 28, 2018 in London.
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