📋 Pre-Pregnancy Information

Enter your pre-pregnancy weight and height to calculate your BMI and determine healthy weight gain recommendations.

Metric (cm, kg)
Imperial (ft/in, lbs)
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First Trimester
Weeks 1-12
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Second Trimester
Weeks 13-27
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Third Trimester
Weeks 28-40
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📈 Track Your Progress

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Weight Gained
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Remaining to Gain
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Progress
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Weekly Rate

📊 Weight Gain Guidelines by BMI Category

Underweight (BMI < 18.5)
28-40 lbs (12.7-18.1 kg)
Normal Weight (BMI 18.5-24.9)
25-35 lbs (11.3-15.9 kg)
Overweight (BMI 25-29.9)
15-25 lbs (6.8-11.3 kg)
Obese (BMI ≥ 30)
11-20 lbs (5.0-9.1 kg)

📚 Pregnancy Weight Gain Information

Why Weight Gain Matters: Appropriate weight gain during pregnancy supports your baby's growth and development while maintaining your health.

Factors Affecting Weight Gain:

  • Pre-pregnancy BMI: Determines your recommended weight gain range
  • Multiple pregnancies: Twins/triplets require more weight gain
  • Age and health: Individual factors may affect recommendations
  • Activity level: Exercise and lifestyle impact weight gain

Weight Gain Distribution:

  • Baby: 6-8 lbs
  • Placenta: 2-3 lbs
  • Amniotic fluid: 2-3 lbs
  • Breast tissue: 2-3 lbs
  • Blood supply: 4 lbs
  • Fat stores: 5-9 lbs
  • Uterus growth: 2-5 lbs

Important Notes:

  • Weight gain should be gradual and steady
  • First trimester gain is typically minimal (1-4 lbs)
  • Second and third trimesters: 1-2 lbs per week
  • Quality of diet matters more than quantity

⚠️ These are general guidelines. Always consult with your healthcare provider for personalized recommendations based on your individual health status.