I've seen some really beautiful maternity photos, that I'd love to recreate. I'm not a fan of showing my bare belly in them, so that probably won't be a picture we take, but just something simple.
That said, I know what I DON'T want to do:
Wow, I would have liked to be in the room when they were like "Oh, you know what we need in this photo? A dirty TIRE! That totally says "impending new arrival" to me.
Or, "Hey, I feel sexiest when I'm dressed in a garbage bag, so we HAVE to make sure we do one where that's all I'm wearing. Also, please kiss me awkwardly. Also, the locale has to be a gross swamp like place." Umm...... what?