The Duchess - whose due date was revealed this week to be April 2018 - looked radiant as she kept warm in a black roll neck beneath her jacket, shielding her blossoming bump from view. A Philosophy di Lorenzo Serafini blazer over a black turtleneck completed the elegant outfit.
A Kensington Palace spokeswoman had said that the Duchess is "better but she's still suffering". But she's taking it day-to-day in deciding what she can do'.
"We were talking about the new stadium, football and what West Ham coming to the stadium has done for the area". She'll think I'm more of a great dad now than I was yesterday.
The programme is created to teach apprentices, aged between 16 and 24, technical sports skills alongside coaching, with an emphasis on employability.
Before the ceremony, Kate and the princes watched some practical sessions in action, seeing various coaches going through their drills.
Earlier in the day, graduates, along with other apprentices from London, Glasgow, Essex, Nottingham, Birmingham, Manchester, and South Wales, will take part in a question and answer session with professional sportspeople to discuss the impact sports and coaching has had on their lives. In the past nine months alone, Prince William and Kate, Duchess of Cambridge, have paid visits to Paris, Poland, Belgium, Berlin, Heidelberg, Hamburg, plus various locations around Britain.