The supermodel, 38, married rocker Jamie, 43, last year, and the Daily Star reckons they are going to be parents pretty soon, now renovations on their swanky - or should that be family - home in Highgate in London are completed.
A source told the paper that Kate has bought Jamie a "lucky" white gold bracelet to mark their nine months of marriage, and the beginning of their baby-boom efforts:
"Kate can't wait for them to move into their new house and start the next chapter of their lives.
"They're planning to have a child once they've settled in so she wanted to surprise Jamie with a gift to make it extra special.
''They didn't want Kate to fall pregnant until they were in and settled so they're both really excited that the move is finally happening.''
Kate - who is already mum to Lila Grace, nine - has dodged pregnancy rumours in the past, but it sounds like her new pad is ready and waiting for the pitter patter of tiny - and probably well heeled - feet.
In July last year, just before her wedding, the supermodel hinted she was ready for more children, saying: "First of all I am going to get married. And maybe more kids? Who knows what the future will bring. My career is OK so far, anyway."
What do you reckon to these rumours?