Read copyright and permissions information. This information is designed as an educational aid for the public. It offers current information and opinions related to women's health. It is not intended as a statement of the standard of care.
It does not explain all of the proper treatments or methods of care. It is not a substitute for the advice of a physician. J Reprod Med. Source: National Vital Statistics System birth data.
Gaining less than the recommended amount of weight in pregnancy is associated with delivering a baby who is too small. Some babies born too small may have difficulty starting breastfeeding, may be at increased risk for illness, and may experience developmental delays not meeting the milestones for his or her age. Gaining more than the recommended amount of weight in pregnancy is associated with having a baby who is born too large, which can lead to delivery complications, cesarean delivery, and obesity during childhood.
Gaining more than the recommended amount of weight can also increase the amount of weight you hold on to after pregnancy, which can lead to obesity. CDC conducts surveillance using data from the Pregnancy Risk Assessment Monitoring System , the National Vital Statistics System , and other sources to monitor the prevalence and trends of women meeting pregnancy weight gain recommendations. CDC also conducts research to understand health risks associated with too much or too little weight gain during pregnancy to inform future pregnancy weight gain guidelines.
Current activities include examining the quality of prepregnancy weight and pregnancy weight gain data, the role of provider advice in helping women to meet pregnancy weight gain recommendations, as well as identifying strategies that can help women achieve pregnancy weight gain within recommendations.
Skip directly to site content Skip directly to page options Skip directly to A-Z link. Reproductive Health. Section Navigation. Gaining too much or too little weight can lead to various issues during pregnancy and after you give birth, which is why going at a steady pace is best.
You may have heard that you should gain 25 to 35 pounds while you're pregnant. Your BMI is calculated using your height and weight. The first step in figuring out your personal weight gain goal is to determine your BMI before pregnancy, which affects how many pounds you should be putting on while you're expecting. The process of putting on pounds throughout your pregnancy is not an exact science.
But gradual weight gain is as important as the number of pounds you gain, since your baby needs a steady supply of nutrients and calories to grow during his stay in the womb. Your pregnancy weight gain timeline will depend on a variety of factors, such as your metabolism, your activity level and your genetics. Keep in mind that these are averages, not a hard-and-fast formula.
There will be some weeks when you feel hungry all the time and others when eating much of anything will make your stomach turn. Try not to worry too much. Ever wonder where the pregnancy weight goes? You need to gain weight in all these areas to have a healthy baby and pregnancy, and to prepare your body for nursing. For the best pregnancy weight gain results, keep an eye on the scale.
Try to weigh yourself:. Just keep in mind that a lot can happen in a month — and getting significantly off-track can make it harder to hit your overall goals.
Another key to healthy pregnancy weight gain is eating a well-balanced diet , which includes keeping a rough daily estimate of your calories during pregnancy. Base your pregnancy calorie goals on how many calories you were eating before you got pregnant, with your daily amount increasing each trimester:.
If you were underweight before you got pregnant, you may need to consume more calories. Wondering how many calories you should eat while pregnant and overweight or obese before you conceived? Talk to your doctor.
You may not need as many calories. Your practitioner may actually want you to cut back on calories, especially if you have diabetes.
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