I think that has to have been what kick started it. I know in the vintage Harper's Bazaar thread I've been posting editorials in there have been maybe one or two features with pregnant models/celebrities, but you'd have no idea they were pregnant based on how many layers they were wearing. I want to say Christie Brinkley had a small feature while pregnant and you can hardly tell lol...Would it have been kickstarted by Demi Moore's Vanity Fair cover in August 1991?