16/03/2015 07:14 GMT | Updated 20/05/2015 06:12 BST

Royal Baby: Has The Duchess Of Cambridge Dropped A Hint She's Expecting A Girl?

LONDON, ENGLAND - MARCH 12: Catherine, Duchess of Cambridge during an official visit to the set of Downton Abbey at Ealing Studios on March 12, 2015 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)

Has the Duchess of Cambridge dropped a hint that she's expecting a baby girl?

As her due date approaches next month, rumours have been circulating that Kate and Prince William are having a daughter – because the Duchess was seen browsing the girls' section of a clothes shop.

An eye-witness told People magazine that she spotted Kate perusing the girls section of children's boutique Amaia – which was confirmed by the store's so-owner Segolene Tresca.

She said: "She was looking at all the girls' clothing. She was very interested.

"Every mum that comes in the shop, they look for boys' [clothes] but they always end up looking at the girls' stuff too. We all hope it's a little girl because it will be so cute, they will be like a little couple."

The royal couple have said they don't know the gender of the baby, preferring to keep it a surprise for her late April due date.However, Prince William's father Prince Charles has said he hopes they welcome a baby girl as a little sister to Prince George.

He said soon after Kate's second pregnancy was confirmed: "I hope it will be a girl this time."

​British bookmakers William Hill are forecasting that if the Royal baby is indeed a girl, Elizabeth tops the list of heavily backed names. Charlotte and Alexandra have also been high in the charts.

Kate, 33, is wrapping up her final duties before she begins her maternity leave next week to prepare for the baby's arrival.

Last week, she visited the set of Downton Abbey, where she met the cast and crew of her favourite drama.

She will be attending a St Patrick's Day event tomorrow (Tuesday), which is believed to be her last engagement until she goes on maternity leave from her royal duties next month.

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