The amount of weight that your infant should gain each month will vary depending on exactly how old your infant is. Regardless of how fast your infant gains weight, one of the most fascinating things that you can experience as a parent is watching your baby’s growth. During that first year of an infant’s life, the growth seems almost constant, and is very noticeable.
When a baby is first born, he will typically weigh around 6 to 9 pounds at first. Your baby might be lighter than this, or heavier than this. It is likely that if this is the case, your baby may get some extra attention from your health care providers during delivery and just after birth to make certain that there are no problems. A baby’s size at birth is influenced by a great number of factors, from the parents’ size to the baby’s gender, from the infant’s birth order to the mother’s health and nutritional practices during pregnancy.
During the first week after your baby is born, it is normal for your infant to lose a few ounces. By the second week, however, she should have gained those back. By the end of her first month, she will likely have gained just under a pound.
During months 1 to 3, your baby will generally gain around 6 ounces per week, or around a pound and a half a month. During months 4 through 7, your baby’s weight gain will vary more, going to around 1 to 2 pounds per month. By the time your baby hits 8 months of age, he will probably weigh about two and a half times what he weighed at birth.
Your infant’s weight gain will slow down at ages 8 to 12 months. Your infant should gain weight each month, but it will likely be less than what he has been gaining.
If you are concerned that your infant is not gaining enough weight, or is gaining too much weight, you should speak with your health care provider. Your health care provider can measure your baby, and track her weight, and help you to determine if her weight gain is appropriate for the stage that she is at.
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