hi mam my baby is 1 month 12 days, she is a preterm baby & born after 8 months 1 week .At the time of birth her weight is approx 1.95 kg & presently weighs 2.55 kg .what can we do to increase her weight. From breastfeeding she didn't receive full milk & we are using similac neosure preterm milk powder, should we continue with it or move to a different quality of milk or another stage of the same milk.