how much weight can you gain in 12 weeks?
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While the majority of the pounds will make their appearance during the second and third trimester, there's some initial weight gain that will happen in the first 12 weeks of pregnancy. In fact, on average, people gain 1 to 4 pounds in the first trimester — but it can vary.
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Rapid weight gain During the final months of pregnancy, your baby gains the most weight. In fact, according to the American Pregnancy Association, a fetus weighs around 2 pounds at 27 weeks, 4 to 4 ½ pounds by 32 weeks, and grows up to between 6 ¾ pounds to 10 pounds, if you have a full-term delivery.
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As you near the end of your first trimester, and begin the second, weight gain is expected to increase. Some providers like to see women with a "healthy" BMI prior to pregnancy, gain 10 pounds by 20 weeks. During the second and third trimester, guidelines often suggest gaining 1/2 to 1 pound per week.
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At 12 weeks pregnant, baby is as big as a plum. The average fetus at 12 weeks is about 2.1 inches long and . 49 ounces. Now that baby's got pretty much all of their important organs, their main job is to keep on growing.
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At around 11 inches long and just over a pound, this week marks the beginning of some serious weight gain. Your baby should double his weight over the next four weeks alone — and you may feel as though you do, too.
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For women who are overweight or have a BMI of 30 or higher, the guidelines suggest a weight gain of about 1/2 pound (0.2 kilogram) a week in the second and third trimesters. Try adding a glass of low-fat milk or an ounce of cheese and a serving of fresh fruit to your diet.
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Average weight gain at 23 weeks is 12 to 15 pounds. This weight gain may lead to stretch marks on your belly, thighs, and breasts. Or they may not show up for several weeks if at all.
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At this stage, your baby will start to move away from a steady gain of about 6 ounces per week to a little less than 4 ounces. This means that she will gain roughly 2 pounds this month, and every month following until seven months old.
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Healthy weight gain in the first trimester is about one to five pounds total, so at 8 weeks pregnant, you may have gained a few pounds already. If you've been dealing with morning sickness, though, you may have gained next to nothing—and that's okay too.
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Fetal weight gain At around 11 inches long and just over a pound, this week marks the beginning of some serious weight gain. Your baby should double his weight over the next four weeks alone — and you may feel as though you do, too.
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In general, you should gain about 2 to 4 pounds during the first three months you're pregnant and 1 pound a week during the rest of your pregnancy. If you are expecting twins you should gain 35 to 45 pounds during your pregnancy.
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This week, you may look in the mirror and wonder, “Where did I go?!” By the time you reach 21 weeks pregnant, you may have gained around 13 to 14 pounds, and around 21 pounds if you're 21 weeks pregnant with twins.
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Keep in mind, too, that what is considered healthy weight gain in the first trimester is typically only a few pounds depending on your pre-pregnancy weight—usually 2 to 4 pounds. If you lose a couple of pounds, rather than gain, the net loss will only be several pounds.
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Summary. During the third trimester of pregnancy, women can expect to gain around 0.5 to 1 lb per week.
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More rapid weight gain. You may have gained about 5 to 10 pounds by now. It's normal to gain about 1 to 2 pounds per week in the second trimester. Sudden or excessive weight gain could be a sign of a problem though, so talk to your OB if it's higher than that.
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Weight gain becomes more common toward the end of your first trimester. You may find yourself gaining about 1 to 4 pounds in the first few months. The calorie requirements for early pregnancy won't change much from your usual diet, but they will increase as pregnancy progresses.
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Your 12 weeks pregnant belly At 12 weeks, your baby bump may be more pronounced and may even show to the outside world. But it's just as likely that while your clothes may be getting a little tight, you won't yet have a noticeably pregnant belly at this point.