With Kate Middleton smiling and showing off her baby bump to cameras, it can be easy to forget that 31 years ago, America was fascinated with a different pregnant "people's princess." The late Princess Diana would have turned 52 today, so in honor of her birthday, we're looking at some of the ways she changed the role of being a royal mom. From delivering the heir to the British throne in a hospital, to media photos
and keeping mum about the birth date
, we compare Princess Di's first pregnancy with Kate's.
Photo: Richard Young/Rex USA