Healthy Living

Weight Gain During Pregnancy

Choose a preferred language

Weight gain in pregnancy varies from woman to woman. It also depends on body type. Talk with your healthcare provider about the amount of weight gain that's best for you. Also talk with your provider about what to eat and the best ways to get exercise in pregnancy.


Recommendations for pregnancy weight gain by BMI

  Prepregnancy body mass index (BMI)

Total gain range 

Rate of gain in 2nd and 3rd trimester   

 Less than 18.5 (underweight)

 28-40 lbs

 1 (1-1.3) lbs/week

 18.5-24.9 (normal weight) 

 25-35 lbs

 1 (0.8-1) lbs/week

 25.0-29.9 (overweight)

 15-25 lbs

 0.6 (0.5-0.7) lbs/week

 greater than 30.0 (obese) 

 11-20 lbs

 0.5 (0.4-0.6) lbs/week

Source: Centers for Disease Control and Prevention

Here's how weight gain by the end of pregnancy is distributed:

Baby

7.5 pounds

Maternal energy stores (fat, protein, and other nutrients)

7 pounds

Fluid volume

4 pounds

Breast enlargement

2 pounds

Uterus

2 pounds

Amniotic fluid

2 pounds

Placenta

1.5 pounds

Blood

4 pounds

Source: The March of Dimes

Featured in

Date Last Reviewed: 03/01/2023

© 2000-2025 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
doctor icon

Find the right provider to meet your needs

From primary care to specialty services and more.

Find a Doctor
appointment clock icon

Call for an Appointment

Offering personalized care at more than 20 clinics across three cities and two states.

Call Now
Related Articles
Read article
Wellness
International Travel While Pregnant or Breastfeeding

Detailed information on traveling while pregnant or breastfeeding.

Read article
Wellness
Parents-to-Be Must Communicate

Few parents-to-be receive training for the much more challenging and long-term tasks--becoming good parents and remaining close and loving partners in the face of new stresses and strains as their family grows.

Read article
Wellness
We’re Pregnant–Tips for the Expectant Birth Partner

More than ever, men are actively involved throughout the pregnancy experience. The term expectant father really fits, as men support, worry, and plan right along with their pregnant partners. Some of the more common experiences for expectant dads are included here.

Read article
Wellness
Quitting Smoking During Pregnancy

Every cigarette you don't smoke is a benefit to you and your baby. Deciding not to smoke can be a tough choice, but you can change. Even if you've tried before, don't give up.