If a three-month-old baby does not eat the bottle, it is possible that the baby is not comfortable with the pacifier. Because the pacifier is not the same as the mother’s nipple, this is a good time to choose a softer pacifier or one that is closer to the mother’s nipple, which may be more popular with the baby. In addition, if the baby does not accept the taste of milk powder, he or she may not eat the bottle. You can squeeze the mother’s milk into the bottle for the baby to eat, and if the baby eats it, it means that the baby does not accept the milk powder. You can try to change the brand of formula and choose one that is close to the flavor of breast milk so that the baby may accept it a little easier. In addition, when the baby is hungry to feed the baby bottle first, so that the baby also has to adapt to the process, slowly will accept.