I also had C-section ah, and i started eating 補品 weeks ago already......I have bought '28 fong' and i nearly finish it now, so, i think you can start eating bit by bit. Is your 惡露 still a lot? My 惡露 has already stopped lar.
My elder girl 出世時 was only 1.92kg (37.5 wks-- I have high blood pressure). She stayed in hospital for nearly 1 mth. She is now 4.5 yr old and is a bit over weight la. It will be hard for mame to take care of 唔足月 or under-weight BB. So, take more rest now to prepare for your BB's coming back home, no need to worry