First-time mothers who exclusively breastfeed their babies will probably wonder about this many times and constantly worry about whether their baby is full or not? Is the baby getting enough milk? Is the amount of milk enough for the baby to gain weight? After leaving the mother's womb, the baby sleeps lethargically, do you need to wake the baby up to breastfeed? The reason is that mothers often worry that not getting enough milk will affect the baby's physical and mental development.