Baby blue bump: No hint of morning sickness as Kate conceals growing tummy under coat during refinery tour with Prince William

Wearing a blue Matthew Williamson coat and heeled boots, the Duchess of Cambridge looked the picture of health as she visited the Valero Pembroke Refinery in Wales today. Her bump could be clearly seen through the baby blue outfit (left) as she laughed and joked with apprentices and workers at the 50th anniversary event. Kate was not seen on an official public engagement for almost two months while she battled with extreme morning sickness, known as hyperemesis gravidarum. She is now 15 weeks pregnant and is expected to give birth in April. Prince William and Kate spoke with well-wishers who had waited for hours in the pouring rain and wind (bottom right). They also joked as they sat in front of screens and pressed a button to create their own gasoline blend at the refinery. For the first few years of their marriage, the royal couple lived a secluded four-bedroom cottage in Anglesey on the north west coast of Wales.