Gaining an appropriate amount of weight during pregnancy helps your baby grow to a healthy size. But gaining too much or too little weight may lead to serious health problems for you and your baby.
According to experts External link, gaining too much weight during pregnancy raises your chances for developing gestational diabetes (diabetes during pregnancy) and high blood pressure during pregnancy. It also increases your risk for type 2 diabetes and high blood pressure later in life. If you’re overweight or have obesity when you get pregnant, your chances for health problems may be even higher. You could also be more likely to have a cesarean section (C-section) NIH external link.
Gaining a healthy amount of weight helps you have an easier pregnancy and delivery. It may also help make it easier for you to get back to a healthy weight after delivery. Research shows that recommended amounts of weight gain during pregnancy can also lower the chances that you or your child will have obesity and weight-related problems later in life.
How much weight should I gain during my pregnancy?
How much weight you should gain depends on your body mass index (BMI) before pregnancy. BMI is a measure of your weight in relation to your height. You can use a formula to calculate your BMI NIH external link online.
It’s important to gain weight very slowly. The old myth that you’re “eating for two” is not true. During the first 3 months, your baby is only the size of a walnut and doesn’t need many extra calories. The following rate of weight gain is advised
1 to 4 pounds total in the first 3 months
2 to 4 pounds each month from 4 months until delivery
Talk to your health care professional about how much weight gain is appropriate for you. Work with him or her to set goals for your weight gain. Take into account your age, weight, and health. Track your weight at home or when you visit your health care professional.
Don’t try to lose weight if you’re pregnant. Your baby needs to be exposed to healthy foods and low-calorie beverages (particularly water) to grow properly. Some women may lose a small amount of weight at the start of pregnancy. Speak to your health care professional if this happens to you.