How much weight should you gain at 16 weeks pregnant

Weight Gain During Pregnancy: How Much Is Normal?

Written by WebMD Editorial Contributors

In general, you should gain about 2 to 4 pounds during the first 3 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. This would be an average of 1 ½ pounds per week after the usual weight gain in the first 3 months.

It's especially important to gain the right amount of weight when you're expecting twins because your weight affects the babies' weight. And because twins are often born before the due date, a higher birth weight is important for their health. When carrying twins, you may need between 3,000 and 3,500 calories a day.

Where Does the Extra Weight Go During Pregnancy?

Baby: 8 pounds
Placenta: 2-3 pounds
Amniotic fluid: 2-3 pounds
Breast tissue: 2-3 pounds
Blood supply: 4 pounds
Stored fat for delivery and breastfeeding: 5-9 pounds
Larger uterus: 2-5 pounds
Total: 25-35 pounds

Is It Safe to Lose Weight When Pregnant?

If a woman is very overweight when they get pregnant, their doctor may want them to lose weight. They should only lose weight under their doctor's care. But in most cases, women should not try to lose weight or diet during pregnancy.

How to Gain the Right Amount of Weight During Pregnancy

If your health care provider wants you to gain weight while you're pregnant, try these tips:

Eat five to six small meals every day.
Keep quick, easy snacks on hand, such as nuts, raisins, cheese and crackers, dried fruit, and ice cream or yogurt.
Spread peanut butter on toast, crackers, apples, bananas, or celery. One tablespoon of creamy peanut butter gives you about 100 calories and 7 grams of protein.
Add nonfat powdered milk to mashed potatoes, scrambled eggs, and hot cereal.
Add extras to your meal, such as butter or margarine, cream cheese, gravy, sour cream, and cheese.

What if You Gain Too Much Weight During Pregnancy?

If you have gained more weight than your doctor recommended, talk to your doctor about it. In most cases, you'll want to wait until after delivery to lose weight.

Here are some tips to slow your weight gain:

When eating fast food, choose lower-fat items such as broiled chicken breast sandwich with tomato and lettuce (no sauce or mayonnaise), side salad with low-fat dressing, plain bagels, or a plain baked potato. Avoid foods such as French fries, mozzarella sticks, or breaded chicken patties.
Avoid whole milk products. You need at least four servings of milk products every day. However, using skim, 1%, or 2% milk will greatly reduce the amount of calories and fat you eat. Also, choose low-fat or fat-free cheese or yogurt.
Limit sweet or sugary drinks. Sweetened drinks such as soft drinks, fruit punch, fruit drinks, iced tea, lemonade, or powdered drink mixes have lots of empty calories. Choose water, club soda, or mineral water to skip extra calories.
Don't add salt to foods when cooking. Salt causes you to retain water.
Limit sweets and high-calorie snacks. Cookies, candies, donuts, cakes, syrup, honey, and potato chips have a lot of calories and little nutrition. Try not to eat these foods every day. Instead, try fresh fruit, low-fat yogurt, angel food cake with strawberries, or pretzels as lower-calorie snack and dessert choices.
Use fats in moderation. Fats include cooking oils, margarine, butter, gravy, sauces, mayonnaise, regular salad dressings, sauces, lard, sour cream, and cream cheese. Try lower-fat alternatives.
Cook food the healthy way. Frying foods in oil or butter will add calories and fat. Baking, broiling, grilling, and boiling are healthier preparation methods.
Exercise. Moderate exercise can help burn excess calories. Walking or swimming is usually safe for pregnant women. Ask your health care provider what exercise would be right for you before getting started.

When to Call Your Doctor

Talk to your doctor if you:

Want to know a good target weight gain for you
Think you are gaining too much weight
Are losing weight during the second or third trimester
Have an eating disorder that is keeping you from eating a healthy amount of food
Need help setting a good menu plan to gain a healthy amount of weight
Gain weight rapidly. This could be a sign of preeclampsia, pregnancy-related high blood pressure, a serious health issue

Health & Pregnancy Guide

Getting Pregnant
First Trimester
Second Trimester
Third Trimester
Labor and Delivery
Pregnancy Complications
All Guide Topics

How much weight should I gain while pregnant?

Weight gain is essential for a healthy pregnancy

Learning to eat well and manage your weight gain are key components to a healthy pregnancy. Weight gain helps your baby to grow and develop properly, and allows your body to make physical changes to support pregnancy, such as growth of your uterus, development of the placenta and an increase in blood volume. But how much weight is the right amount to gain? When determining a weight-gain range, some important things to consider are: your pre-pregnancy weight for height, commonly referred to as your Body Mass Index (BMI), your medical history, and whether you're carrying one baby, twins or multiples.

How much weight should I gain?

There is no set amount of weight gain that is right for everyone. Yet over time, some general guidelines have been accepted. For women carrying one baby, the first trimester is typically considered a time of minimal weight gain, regardless of your pre-pregnancy BMI. 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. Whatever weight-gain range is determined to be right for you, try to gain the weight gradually. Below are some generally accepted total weight-gain guidelines based on pre-pregnancy BMI.

BMI below 19 prior to pregnancy

Of all categories, underweight women are at highest risk for delivering low birth-weight babies. If you were underweight before becoming pregnant, it's especially important to gain an adequate amount of weight during your pregnancy - 28 to 40 pounds is often recommended.

BMI of 19 to 25 prior to pregnancy

Your pregnancy is off to a healthy start if you're in the "recommended" BMI category. It's typically advised that you gain 25 to 35 pounds over the course of your pregnancy.

BMI of 25 to 30 prior to pregnancy

If you start your pregnancy in this BMI group, your weight gain range is slightly less, however, it's still important to gain weight to support a healthy pregnancy and provide your baby with adequate nourishment – 15 to 25 pounds is often recommended.

BMI above 30 prior to pregnancy

If your BMI is above 30 before you become pregnant, strive for a modest weight gain of 15 pounds – and remember that pregnancy is not a time to lose weight!

Pregnant with twins or multiples

Women who are pregnant with more than one baby typically need to gain additional weight to provide adequate nourishment for the babies. It's best to discuss your weight-gain range with your provider.

My baby only weighs 7 pounds – what makes up the rest?

Rest assured – it is not all fat. Most of the weight will go away gradually after delivery. Here's what you're carrying and approximately how it adds up:

Amniotic fluid and placenta: 4 pounds
Increase in blood and other fluids: 8 pounds
Fat reserves: 7 pounds
Enlarged uterus and breasts: 4 to 6 pounds

How do the calories add up?

You may have heard the saying, "you're eating for two." Although it is true that the food you eat is nourishing two, your calorie needs only increase by about 300 per day after the first trimester. So if your goal is a healthy weight gain, keep in mind that your calorie needs don't increase that much. Here are three examples of healthy food choices that add up to 300 calories:

Whole-wheat English muffin with two tablespoons peanut butter
One cup of yogurt with one cup fresh fruit
Bowl of high-fiber cereal with reduced-fat or skim milk

How will I lose the weight after delivery?

When you combine healthy eating with regular activity during your pregnancy, you'll feel better and shed those extra pounds easier once your baby is born. Gaining the recommended amount of weight during pregnancy can actually help you lose it more quickly afterward. If you're gaining at a faster rate, consult with your health care provider. Try these tips to increase activity and eat healthy during your pregnancy:

Park further away from buildings; use the stairs instead of elevators.
Avoid sitting for long periods of time – take short walk breaks.
Snack on yogurt, string cheese, fresh fruit, or whole-grains (like popcorn and high-fiber cereal) instead of chips, candy and high-fat desserts.
Eat regular meals and snacks.

In addition, women who choose to breastfeed may find it a bit easier to lose weight because of the extra calories (about 500 per day) it takes for their body to produce milk. However, the best approach to losing weight is always through healthy low-fat eating and regular moderate exercise.

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Weight during pregnancy. What increase is considered optimal?

Why is excessive weight gain during pregnancy particularly harmful? What should be the calorie content of the diet? How to build your diet so that you can eat varied (and tasty), but at the same time not gain too much? Let's figure it out.

What makes up weight gain during pregnancy?

An increase in the subcutaneous fat layer during pregnancy is a normal and natural process.

While the baby is growing inside you, he needs energy and external protection. But during pregnancy, weight increases not only and not so much due to the adipose tissue of the mother: there is more fluid in the body, the uterus grows, the fetus and placenta develop, and the breasts increase in preparation for the feeding process.

Interestingly, weight loss during the period of toxicosis can later provoke its increase: the body will try to regain what was lost.

Expectant mothers especially actively gain weight in the second trimester and the beginning of the third, but closer to childbirth, a pregnant woman can even lose 1-2 kilograms. nine0004

As long as the weight increases more or less evenly and does not go beyond the upper limit of the norm, there is nothing to worry about. But if your weight is rapidly going up, you should be wary.

How to correctly calculate the weight, and what increase is considered optimal?

In Russian obstetric practice, it is generally accepted that the total gain should not exceed 12 kg. for the entire pregnancy. Of these 12 kg. 5-6 accounts for the fetus, placenta, amniotic fluid, another 1.5-2 - for an increase in the uterus and mammary glands, and only 3-3.5 - for the fat mass of a woman. nine0004

But this is a general indicator, a kind of "average temperature in the hospital." The optimal increase is calculated individually and depends on the initial weight of the pregnant woman, her age, the number of fetuses and the size of the child (children), physical activity.

WHO recommends that optimal weight gain be calculated based on Body Mass Index (BMI).

It is determined by the formula: body weight (kg) / height squared (m).

BMI	Recommended weight gain
19.8-26 (normal body weight)	12.5-15 kg
26.1-29 (overweight)	11.5 - 14 kg
over 29 (obese)	7-9 kg

How to calculate the optimal weight gain?

To do this, use the following chart:

Calculate your BMI: divide your initial weight in kg. for height in meters squared. nine0072

For example, your "pre-pregnancy" weight was 60 kg with a height of 170 cm.

BMI = 60: (170 x 170) = 20.76.

A BMI of less than 18.5 indicates underweight. Indicators from 18. 5 to 25 are within the norm, from 25 to 30 are above the norm, and a figure greater than 30 indicates obesity.
Now that you know your BMI, find the optimal weekly increase in the table and compare it with yours.

nine0033 Underweight before pregnancy (BMI less than 18.5) nine0039

Week of pregnancy	Normal pre-pregnancy weight (BMI 18.5 to 24.9)	Overweight before pregnancy (BMI over 30)
4	0-0.9 kg	0-0.7 kg	0-0.5 kg
6	0-1.4 kg	0-1 kg	0-0.6 kg
8	0-1.6 kg	0-1.2 kg	0-0.7 kg
10	0-1.8 kg	0-1.3 kg	0-0.8 kg
12	0-2 kg	0-1.5 kg	0-1 kg
14	0.5-2.7 kg	0. 5-2 kg	0.5-1.2 kg
16	up to 3.6 kg	up to 3 kg	up to 1.4 kg
18	up to 4.6 kg	up to 4 kg	up to 2.3 kg
20	up to 6 kg	up to 5.9 kg	up to 2.9 kg
22	up to 7.2 kg	up to 7 kg	up to 3.4 kg
24	up to 8.6 kg	up to 8.5 kg	up to 3.9 kg
26	up to 10 kg	up to 10 kg	up to 5 kg
28	up to 13 kg	up to 11 kg	up to 5.4 kg
30	up to 14 kg	up to 12 kg	up to 5.9 kg
32	up to 15 kg	up to 13 kg	up to 6.4 kg
34	up to 16 kg	up to 14 kg	up to 7. 3 kg
36	up to 17 kg	up to 15 kg	up to 7.9 kg
38	up to 18 kg	up to 16 kg	up to 8.6 kg
40	up to 18 kg	up to 16 kg	up to 9.1 kg

Recently, doctors are increasingly talking about an individual approach and urge not to panic if the increase is slightly beyond the normal range. When assessing the state of health of a pregnant woman, the doctor focuses not only on weight, but also takes into account the results of tests and examinations and other important indicators.

Why is excessive weight gain dangerous?

Gaining extra pounds can lead to gestational diabetes, hypertension, preeclampsia, or cause a caesarean section.

In addition, excessive weight gain during pregnancy may increase the risk of obesity and associated cardiovascular disease.

What can I do to keep my weight within normal limits during pregnancy?

First of all, consult a nutritionist. If there is no such doctor in the antenatal clinic, it makes sense to contact a specialist on a commercial basis. He will develop an individual diet, which will contain all the useful elements, and will offer to keep a food diary. It will also tell you how to eat right and weigh yourself. nine0003 To prevent excessive weight gain during pregnancy, it is enough to follow simple rules of a healthy diet:

Eat often and in small portions;
Always keep a “healthy snack” on hand: fresh apple wedges, unsweetened crackers, dried fruit, or sugar-free yogurt;
Refuse soda, chips, sausages and sausages;
Minimize sweets;
Avoid fast food;
Limit the use of condiments, especially salt, which retains water in the body; nine0072
Choose steamed dishes;
Eat more fiber-rich foods such as whole grain bread, bran, vegetables;

The diet of a pregnant woman should be varied. Include grains, vegetables, fruits, dairy products, meat and fish, legumes, or nuts.

It must be remembered that expectant mothers should never starve and adhere to extreme diets.

How many calories per day do you need during pregnancy? nine0006

It is difficult to calculate the energy value per day on your own, and then strictly adhere to a certain number of calories, and it is not necessary, unless it is recommended by a nutritionist or endocrinologist. On average, you can aim for 2000-2500 calories per day, but it is important to understand that the need for calories depends on many factors: age, initial weight, health status and level of physical activity.

When should I be on the alert?

Strictly speaking, it is better for a pregnant woman not to worry and entrust her condition to a doctor who will control the development of pregnancy, analyzes and monitor weight. It is important to take tests to determine the level of fasting blood glucose once a trimester. The appearance of glucosuria, an increase in fasting blood glucose (more than 5. 5 mmol / l) or an hour after a meal (more than 7.7 mmol / l) indicate the possible development of "diabetes in pregnancy", in connection with which the doctor will prescribe appropriate treatment . In addition, a sharp increase in body weight can cause preeclampsia. nine0004

These and other diseases can be dangerous, which is why you need to carefully monitor the body weight during the gestation period, but remember that pregnancy is not the time for strict diets.

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Weekly pregnancy weight calculator

The weight of the expectant mother is very important for the development of the fetus. It is desirable to have a normal body weight before pregnancy. Lack of weight is a serious risk factor, as a result of which a child may be born too small. nine0004

Being overweight increases the likelihood of having an oversized baby. In such situations, only a timely caesarean section made by obstetricians can help.

Weight in the first trimester

In addition to body weight before conception, weight during pregnancy by weeks and its constant control play an important role. In the first couple of months, it increases slowly, the baby and mother only adapt to each other. During this period, there are frequent cases of toxicosis, which additionally reduces weight. During the first trimester of pregnancy, a woman gains about 1.5 kg. nine0004

Weight in the second half of pregnancy

Intensive weight gain occurs in the second half of the term. Most women gain only 40% in the first 4 months, and the remaining 60% in the second half. However, it also happens the other way around - in some women, weight during pregnancy is gained week by week faster in the first months, there is no pathology in this.

The increase is distributed as follows:

Fat	28%
Water	13%
Fruit	27%
Blood	10%
Uterus	8%
Amniotic fluid	6%
Placenta	5%
Breast	3%

Permissible weight gain

If we take the allowable value of weight gain in women, then it is 350 g per week (50 g per day), with a maximum of 500 g per week. Using the weight calculator during pregnancy, you can find out what it should be at different times. To exceed this norm, it is desirable to lead an active life and monitor nutrition. Although an extra increase is undesirable, in no case should you exhaust yourself with hunger strikes. And there is nothing good in the abuse of flour products in an attempt to get to the norm either. You need to eat something that will benefit not only you, but also the child. nine0004

To obtain an accurate calculation, enter the following digital data into the pregnancy weight calculator:

initial weight;
growth;
approximate gestational age in weeks.

What causes the difference in weight in different women at the same time?

The difference can be due to several reasons. One of them is age; with increasing age, the tendency to be overweight also increases. More weight is gained by women with a lack of mass before pregnancy and who have undergone early toxicosis. The body thereby tries to compensate for the losses. nine0004

An important factor is the peculiarity of the constitution, the difference with the readings of the weight calculator during pregnancy by weeks may be due to a tendency to thinness or fullness.