how much weight should a newborn baby gain in the first month?
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During their first month, most newborns gain weight at a rate of about 1 ounce (30 grams) per day. They generally grow in height about 1 to 1½ inches (2.54 to 3.81 centimeters) during the first month. Many newborns go through a period of rapid growth when they are 7 to 10 days old and again at 3 and 6 weeks.
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In the first three months, a baby should gain, on average, 140 to 210 grams (five to 7½ ounces) per week.
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1 to 4 months: Babies usually gain 1 1/2 to 2 pounds and grow 1 to 1 1/2 inches each month. During this time, your baby may begin looking chubby; however as her activity level increases, those baby rolls will soon be replaced by developing muscle.
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The average newborn's head circumference measures about 13 3⁄4 inches (35 cm), growing to about 15 inches (38 cm) by one month.
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By 4 months, many babies have doubled their birth weight. This month, babies gain about 1 to 1¼ pounds (560 grams) and about 0.8 inches (2 centimeters) in length. Since your child's birth, the doctor has been recording growth in weight, length, and head size (circumference) during your regular well-baby visits.
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The first month of life was a period of rapid growth. Your baby will gain about 1 to 1½ inches (2.5 to 3.8 centimeters) in length this month and about 2 more pounds (907 grams) in weight. These are just averages — your baby may grow somewhat faster or slower.
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A :Your 1-month-old baby needs at least 8 feeds every 24-hours if breastfeeding, or if you are using formula, around 150-200 millilitres per kilogram of your baby's body weight per day.
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In the first trimester, most women don't need to gain much weight — which is good news if you're struggling with morning sickness. If you start out at a healthy or normal weight, you need to gain only about 1 to 4 pounds (0.5 to 1.8 kilograms) in the first few months of pregnancy.
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In the first month, the typical newborn gains about 0.7 oz (20 g) a day, or about 4 oz (110 g) to 8 oz (226.8 g) a week. The average length of full-term babies at birth is 20 in. (50 cm), although the normal range is 18 in. (45.7 cm) to 22 in.
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Between six and 12 months, the average growth rate is 70 to 91 grams (2½ to three ounces) per week. On average, babies double their birth weight by four or five months, and triple it by a year.
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In the first few weeks, your baby will probably gain about 175g to 225g (6oz to 8oz) a week in weight. By about six months, they will probably have doubled their birth weight, and after this their weight gain will gradually slow down. The centile charts used to measure growth are just guidelines.
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How Big Are Newborns? Newborns come in a range of healthy sizes. Most babies born between 37 and 40 weeks weigh somewhere between 5 pounds, 8 ounces (2,500 grams) and 8 pounds, 13 ounces (4,000 grams). Newborns who are lighter or heavier than the average baby are usually fine.
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From birth to age 6 months, a baby might grow 1/2 to 1 inch (about 1.5 to 2.5 centimeters) a month and gain 5 to 7 ounces (about 140 to 200 grams) a week. Expect your baby to double his or her birth weight by about age 5 months.
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By two weeks, I expect a baby to return to birth weight. The average baby then gains about one ounce per day for the first month, and about one or two pounds a month until month six. Most babies double their birth weight by five or six months, and triple it by a year. Remember, though, these are averages.
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While newborns vary in size and shape as much as adults do, full-term babies tend, on average, to weigh between 5 pounds, 11 ounces and 8 pounds, 6 ounces. They're usually between 19 and 21 inches long, with a head circumference of about 13 1/2 inches.
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The AAP also says that "most babies are satisfied with three to four ounces per feeding during the first month, and increase that amount by one ounce per month until reaching eight ounces." Keep in mind that these are averages, and some babies require more or less formula at each feeding and on each day.
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Month Eight of Pregnancy Your baby, who is now about 46cm (18 inches) long and weighs as much as about 2.27 kg (five pounds), will continue to mature and develop body fat reserves. You may notice that your baby is kicking more. Baby's brain is developing rapidly at this time, and he or she can see and hear.