Early on, Mandie had made several teen maternity outfits that were posted at .6tx files. She had posted instructions on the old Insim and Inteen sites on how to change default pregnancy outfits used by Inteen. Unfortunately that post is missing.
Mandie did later redo some of those outfits as .package files. Take another look on this site and on
Simbology to see if you can find what you want.