The reason being, she's been hard at work putting the finishing touches on their new 10-bedroom country home, Anmer Hall. Think fabulous interiors, think garden room, think outside pool and tennis courts, think a modest £1.5 million-plus refurbishment.
Kate is set to spend the rest of her maternity leave tying up all the renovations and while she's had a little help from one of Prince Charles's favourite architects, Charles Morris, and designer Ben Pentreath - this project has been all hers.
LOVE KATE MIDDLETON'S ELEGANT STYLE? Take a look back at all those stunning (designer and high street) outfits she wore during the Royal Tour.
MORE! Watch all the latest on your favourite royal right here...
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