But the Duchess of Cambridge has thrown a spanner in the she's-having-a-girl works by buying a top-notch pram in BLUE!
A source said: "She and some of the other girls were talking about prams and one of the girls had her baby in a Bugaboo. Kate said she has bought one in light blue. It was a bit of a hint."
Bugaboos are the celebrity buggy of choice - with everyone from Sienna Miller to Peaches Geldof and Myleene Klass pounding the pavement with the pram. A Bugaboo costs between £500 and £1,000, and can be used as a pram from birth or as buggy for an older baby.
Kate has been stocking up on baby gear as her summer due date approaches. She was spotted buying a pricey Moses basket from a swanky High Street Kensington store at the weekend.
The Duchess's buggy buying comes as a new survey reveals the cost of designer baby gear.
According to a survey by The NPD Group, new parents spend an average of £1,100 per baby on gear which excludes feeding equipment, food and clothing.
A fifth of new parents' overall baby budget goes on a pushchair or pram, with Silver Cross and Bugaboo some of the most popular models on which to splash the cash.
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