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BumpTrack
Are you gaining at the right pace? Compare your pregnancy weight gain to IOM guidelines.
The Institute of Medicine recommends total pregnancy weight gain of 28-40 lbs for underweight women (BMI < 18.5), 25-35 lbs for normal weight (18.5-24.9), 15-25 lbs for overweight (25-29.9), and 11-20 lbs for obese (≥ 30). Most gain occurs in the 2nd and 3rd trimesters.
Of 30 lbs total gain, roughly: baby 7.5 lbs, placenta 1.5 lbs, amniotic fluid 2 lbs, uterine growth 2 lbs, breast tissue 2 lbs, blood volume 4 lbs, fluid 4 lbs, fat/nutrient stores 7 lbs. Gaining too little increases risk of preterm birth; gaining too much increases risk of gestational diabetes and C-section.
Daily energy expenditure with personalised macro splits.
OpenBody mass index with healthy-range guidance.
OpenUS Navy circumference method for body fat percentage.
OpenDaily hydration target based on weight, activity, and climate.
OpenRecommended gain by week 20
9.1–12.5 lbs
BMI: 23.3 (Normal weight)
What you entered
Pre-pregnancy BMI
(140 ÷ 65²) × 703= 23.3 (Normal weight)Recommended total gain
Normal weight BMI range= 25–35 lbsRecommended gain by week 20
1st tri base + weekly rate × weeks= 9.1–12.5 lbsResult
Recommended gain: 9.1–12.5 lbs
With a pre-pregnancy BMI of 23.3 (Normal weight), the IOM recommends gaining 25–35 lbs total. By week 20, you should have gained approximately 9.1–12.5 lbs.