thanks for your query
please breast feed your baby as often as you can manage and baby demands.
You are likely to have more milk during
lactation if you try giving your feeds more frequently.
To have enough milk you will need to take healthy and nutritious diet (plenty of fluids,fruits,veg, whole grains,milk,curd,nuts) and,plenty of rest.
your
anxiety can also decrease your milk output.
your babys weight (9 pounds) seems to be slightly on the lower side presuming he was born with an average weight (3kg )
Please do not wish for a chubby child because as long as your baby is gaining 800-1000g in a month, for first few months it is o.k.
Try breast feeding your baby as often as he demannds or you can manage.
Give NAN1 only if you do not have enough milk or are not in a situation to give your feed
Try burping your baby after each feed and in between feeds, to ensure less wind passing through the anus.
Passing one
green stool can be considered normal as long as stool is not watery/not foul smelling and baby is feeding well and looking playful.
I hope my answer is helpful to you.
God Bless
regards
dr kanwar deep