Pregnancy Weight Tracker Pre-pregnancy Height (cm) Pre-pregnancy Weight (kg) Current Gestational Week Current Weight (kg) Calculate Now BMI Analysis Weight Guidance Recommended Range Your Weight (optional) Developed according to WHO guidelines and Chinese Dietary Guidelines for Pregnancy: 🔢 Pre-pregnancy BMI Analysis - Categorizes underweight/normal/overweight/obese 📈 Trimester-specific Guidance - Phase-appropriate weight gain targets 🍎 Nutritional Analysis - Tracks protein/calcium/iron requirements 3 Golden Rules for Pregnancy Weight Management Rate Control 1st Trimester: 1-2kg total | 2nd/3rd: 0.3-0.5kg/week Balanced Nutrition +300 kcal/day | 15-20g extra protein required Risk Alerts ＞1kg/week: Hypertension risk | ＜0.3kg/week: Fetal growth check