Pregnancy Weight Gain Calculator

This calculator helps expectant mothers track their pregnancy weight gain and determine if they are on track with the recommended guidelines.









Pre-Pregnancy BMIRecommended Weight GainFirst TrimesterSecond TrimesterThird Trimester
Underweight (BMI less than 18.5)28-40 pounds1-4.5 pounds1-2 pounds per week1-2 pounds per week
Normal weight (BMI 18.5-24.9)25-35 pounds1-4.5 pounds1-2 pounds per week1-2 pounds per week
Overweight (BMI 25-29.9)15-25 pounds1-4.5 pounds0.5-1 pound per week0.5-1 pound per week
Obese (BMI 30 or more)11-20 pounds1-4.5 pounds0.5-1 pound per week0.5-1 pound per week

It’s important to note that these recommendations are general guidelines, and the specific weight gain appropriate for you may vary based on several factors, including your height, age, and the number of babies you are carrying. It is always best to consult your healthcare provider to determine the proper weight gain goal for you during pregnancy.

Frequently Asked Questions

Your recommended weight gain is based on your pre-pregnancy body mass index (BMI) and the number of weeks you are pregnant. If you are carrying twins, your recommended weight gain may be higher.

What is body mass index (BMI)?

Body mass index (BMI) is a measure of body fat based on your weight and height. It is used to determine if you are underweight, normal weight, overweight, or obese.

Is it normal to gain weight at different rates during pregnancy?

Yes, it is normal to gain weight at different rates during pregnancy. Some women may gain weight more quickly in the first trimester, while others may gain weight more slowly. It is important to talk to your healthcare provider about your specific weight gain goals.

What if I am not gaining enough weight during pregnancy?

If you are not gaining enough weight during pregnancy, it is important to talk to your healthcare provider. They may suggest ways to increase your weight gain, such as eating more calories or increasing your physical activity.

What if I am gaining too much weight during pregnancy?

If you are gaining too much weight during pregnancy, it is important to talk to your healthcare provider. They may suggest ways to manage weight gain, such as eating a healthy diet and increasing physical activity.

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