History wisely tumble much does clomid iui cost detection The expectant Kate Middleton showed off her growing belly for the first time on Feb. 19, 2013 at London Hope House. The Duchess of Cambridge, whose royal baby with husband Prince William is due in July, wore a gray Max Mara wrap dress which ever so slightly gave a glimpse of her bump. In her first public appearance of the year, the 31-year-old spoke for Action on Addiction in South London, a charity in which she is a patron that supports woman overcoming substance abuse.