Hi Sunshinekid
I had those normal binder from gynae, but they are not as tight as the ones from Wacoal. I bought it a month after I delivered, from Isetan Scotts wacoal section. The lady tried size L and M for me, depending on your comfort level as in how tight you want it .. there are 2 rows of hooks, one inner and one outer and the inner ones would make it even tighter. The tummy looks wrinkled temporarily only, when you removed the corset, because it has been "binded" so tightly for the entire day. You can get one now, I had the size L and M and I think get the L size first, and after you have shrunk , get the M one but the L one serves me well.
Are you gonna get a c-section this turn round, or VBAC ? not sure if it can be used immediately after c-section.
It can be very uncomfy when you use it, because it is so tight, then again, it has to be tight for it to be effective ..