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Week-by-week pregnancy weight gain recommendations based on IOM (Institute of Medicine) guidelines. Select your week and BMI category for expected weight gain, calorie needs, key nutrients, and fetal development.
Medical Disclaimer
This guide is for educational purposes only and is not medical advice. Every pregnancy is different. Always consult your healthcare provider about your individual weight gain goals and nutritional needs. The ranges shown are based on IOM guidelines for singleton pregnancies.
| BMI Category | BMI Range | Total Gain (lbs) | Weekly Rate (T2-T3) |
|---|---|---|---|
| Underweight | BMI < 18.5 | 28-40 lbs | 1-1.3 lbs/week |
| Normal Weight | BMI 18.5-24.9 | 25-35 lbs | 0.8-1 lbs/week |
| Overweight | BMI 25-29.9 | 15-25 lbs | 0.5-0.7 lbs/week |
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