Track your pregnancy weight gain based on guidelines from the Institute of Medicine
| Pre-Pregnancy BMI | Category | Single Baby | Twins |
|---|---|---|---|
| <18.5 | Underweight | 28-40 lbs (12.7-18.1 kg) | - |
| 18.5-24.9 | Normal Weight | 25-35 lbs (11.3-15.9 kg) | 37-54 lbs (16.8-24.5 kg) |
| 25.0-29.9 | Overweight | 15-25 lbs (6.8-11.3 kg) | 31-50 lbs (14.1-22.7 kg) |
| >30.0 | Obese | 11-20 lbs (5.0-9.1 kg) | 25-42 lbs (11.3-19.1 kg) |
| Week | Weight Range | Total Gain |
|---|