Meet Kate Middleton's Most-Loved Maternity Designer

"I knew [that Kate was a fan of the line] because we had orders going to Kensington Palace," Cecile told us. "It was very exciting. But what was really exciting was that she chose to wear one of our dresses weeks after the baby had been born. That was really the best testimony. It showed that maternity clothing didn't have to be these drab clothes that you dread wearing and can't wait to throw out. They can be pieces that you really love and feel good in, and wear for nursing as well."