27 Weeks Pregnant Weight Gain Calculator
Here’s a comprehensive table outlining recommended weight gain by 27 weeks of pregnancy for twin pregnancies. This table is based on pre-pregnancy BMI and provides recommended total weight gain, weekly weight gain rates, and estimated weight gain by week 27.
| Pre-Pregnancy BMI | Weight Category | Recommended Total Weight Gain (Full Term) | Weekly Weight Gain (Weeks 1-20) | Weekly Weight Gain (Weeks 21-27) | Estimated Weight Gain by 27 Weeks |
|---|---|---|---|---|---|
| BMI < 18.5 | Underweight | 16-25 kg | 0.3 - 0.4 kg | 0.5 - 0.6 kg | 9.6 - 12 kg |
| 18.5 ≤ BMI < 24.9 | Normal Weight | 14-23 kg | 0.3 - 0.4 kg | 0.5 - 0.6 kg | 9.6 - 12 kg |
| 25.0 ≤ BMI < 29.9 | Overweight | 11-19 kg | 0.3 - 0.4 kg | 0.5 - 0.6 kg | 9.6 - 12 kg |
| BMI ≥ 30.0 | Obese | 9-15 kg | 0.2 - 0.3 kg | 0.4 - 0.5 kg | 7.8 - 9.6 kg |
Explanation of Table
- Pre-Pregnancy BMI Categories:
- Underweight (BMI < 18.5): Requires a higher total weight gain to support the development of twins.
- Normal Weight (BMI 18.5 - 24.9): Standard weight gain range for healthy twin pregnancies.
- Overweight (BMI 25 - 29.9): Moderated total weight gain to manage health risks.
- Obese (BMI ≥ 30): Lower total weight gain to reduce potential complications.
- Total Weight Gain Recommendations:
- This is the recommended weight gain for the entire pregnancy from conception to full term (for twin pregnancies).
- Weekly Weight Gain:
- Weeks 1-20: Lower gain rate (0.3-0.4 kg for most BMI categories) as the babies are in early stages of development.
- Weeks 21-27: Slightly increased gain rate (0.5-0.6 kg for most BMI categories) to account for the rapid growth that typically occurs in the second trimester.
- Estimated Weight Gain by 27 Weeks:
- This is the estimated weight gain range up to week 27, calculated by combining the recommended weekly gain rates from both the early and late parts of the second trimester.