Weight During Pregnancy

The amount of weight you should gain during pregnancy depends on your body mass index External link (BMI) before you became pregnant.

The Institute of Medicine provides these guidelines:

	If you were at a normal weight before pregnancy, you should gain about 25 to 30 pounds.
	If you were underweight before pregnancy, you should gain between 28 and 40 pounds.
	If you were overweight before pregnancy, you should gain between 15 and 25 pounds.
	If you were obese before pregnancy, you should gain between 11 and 20 pounds.

Check with your doctor to find out how much weight gain during pregnancy is healthy for you.
You should gain weight gradually during your pregnancy, with most of the weight gained in the last trimester. Generally, doctors suggest women gain weight at the following rate:

	2 to 4 pounds total during the first trimester
	3 to 4 pounds per month for the second and third trimesters

Did You Know Where Does the Added Weight Go?

	Baby – 6 to 8 pounds
	Placenta – 1½ pounds
	Amniotic fluid – 2 pounds
	Uterus growth – 2 pounds
	Breast growth – 2 pounds
	Your blood and body fluids – 8 pounds
	Your body's protein and fat – 7 pounds

How Many Calories Do I Need During Pregnancy?

Your calorie needs will depend on your weight gain goals. Most women need 300 calories a day more during at least the last six months of pregnancy than they do pre-pregnancy. Keep in mind that not all calories are equal. Your baby needs healthy foods that are packed with nutrients — not "empty calories" such as those found in soft drinks, candies, and desserts.

Although you want to be careful not to eat more than you need for a healthy pregnancy, make sure not to restrict your diet during pregnancy either. If you don't get the calories you need, your baby might not get the right amounts of protein, vitamins, and minerals. Low-calorie diets can break down a pregnant woman's stored fat. This can cause your body to make substances called ketones. Ketones can be found in the mother's blood and urine and are a sign of starvation. Constant production of ketones can result in a child with mental deficiencies.

Return from Weight During Pregnancy to Pregnancy Week by Week

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