The Duchess of Cambridge Kate Middleton caused a huge reaction in this Orla Kiely dress [Getty]
When pregnant Duchess of Cambridge Kate Middleton steps out, fans are always delighted.
Prince William’s wife is a fashion icon, and whatever she wears seems to sell out within minutes.
And her latest dress is no different, as she made a surprise trip to Paddington Station with her husband.
Wearing a pale pink dress with floral detailing and a black collar, the Duchess showed off her baby bump on a trip without children Prince George and Princess Charlotte.
Pregnant Duchess of Cambridge Kate Middleton looked very happy to be meeting Paddington [Getty]
The dress has been revealed to be by designer Orla Keily, and is a snip at just £139.
However fans desperate to get their hands on the knee-length dress are set to be disappointed – as the outfit is now sold out.
Kate – who goes by a different name in Northern Ireland and Scotland – teamed the outfit with a black clutch, and black court heels.
Some fans believed the Duchess had previously hinted that she was expecting a boy when she wore a baby blue Alice Temperley dress.
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge and Prince Harry all supported World Mental Health Day [Getty]
However now the pink dress has thrown doubt on that theory.
Kate and William celebrated their sixth anniversary earlier this year, after getting married in April 2011.
And now the Duchess and Duke of Cambridge are expecting their third child.