Weight gain during pregnancy varies from woman to woman and depends on body type. Each woman should talk with her care provider about the appropriate amount of weight gain, as well as diet and exercise.
Prepregnancy BMI |
BMI |
Total Gain |
Rate of Gain in 2nd and 3rd |
---|---|---|---|
Underweight | less than 18.5 | 28-40 lbs | 1 (1-1.3) lbs/week |
Normal Weight | 18.5-24.9 | 25-35 lbs | 1 (0.8-1) lbs/week |
Overweight | 25.0-29.9 | 15-25 lbs | 0.6 (0.5-0.7) lbs/week |
Obese | greater than 30.0 | 11-20 lbs |
0.5 (0.4-0.6) lbs/week |
Total weight gain at the end of pregnancy is, in most instances, approximated as follows, according to the March of Dimes:
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
|
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Online Resources of Pregnancy & Childbirth