Breastfeeding?

Hello, I have cf, my son is 7 months and I have breastfed him with formula supplement (not very much comes out when I pump). My question is how many cfers have breastfed? how long? also my baby has constipation issues (he tested negative for cf and is not even a carrier) and was wondering if it could be my milk? I also have problems gaining weight, I only gained 8lbs while pregnant and lost 15lbs after the baby. Any advice?
Source: Cystic Fibrosis Pregnancy Forum - Category: Respiratory Medicine Authors: Tags: Pregnancy Source Type: forums