Hello, My son is 4&1/2 month old. He never latched so I exclusively pum and feed him with bottle. He was underweight when he was born 2.59 kg. From past couple of weeks he is drinking very less milk around 4 feeds and 500-650ml milk and takes long stretch inbetween two feeds. Also he only drinks from his father which is quite frustrating. I was sick hence my husband helped for some time and now my son doesn't want to feed with anyone else. What should I do to solve both these issues.