To start with I wore a loose (black - stains are invisible!) maternity nightie that buttoned all the way up the front - kind of a long tshirt with buttons. Though I ended up in the pool with just a soft crop top on...
I was naked with Isaiah after getting out of the pool. It didn't occur to me to put something on, I only realized a few days later that I ended up naked! With Asher I wore a dark blue nightie (I think)
With Dd1 my lucky labour nightie With dd2 I have no idea.... It must have just been the clothes I was wearing as I remember not having time to get my lucky nightie on. With ds the maxi dress I was wearing and of course my shoes !!!!
Perhaps a vest top would be a good plan for you? Or a strappy maxi dress .... Although that might be too much material. Perhaps just the top, they tend to put a sheet over your middle anyway don t they.