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Pregnancy Weight Gain Tracker - Online Weekly Chart by BMI

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Pregnancy Weight Gain Tracker

Weekly weight gain chart based on your pre‑pregnancy BMI – stay on track for a healthy pregnancy.

Your Profile
Your BMI: --
Category: --
Recommended total gain: --
Weekly rate (2nd & 3rd trim.): --
Current Week Status
Status:
Below target On track Above target
Weekly Log
WeekWeight (kg)Gain (kg)Status
No records yet. Add your weekly weights.
Weight Gain Chart

Blue area: recommended range. Dots & line: your recorded weights.

Calculate your BMI and add weekly records to see your progress.

Frequently Asked Questions

The recommended weight gain depends on your pre‑pregnancy BMI. Underweight women (BMI <18.5) should gain 12.5–18 kg (28–40 lb), normal weight (18.5–24.9) 11.5–16 kg (25–35 lb), overweight (25–29.9) 7–11.5 kg (15–25 lb), and obese (≥30) 5–9 kg (11–20 lb). These ranges promote the best health outcomes for you and your baby.

BMI (Body Mass Index) = weight (kg) / [height (m)]². In imperial units: (weight (lb) / [height (in)]²) × 703. It classifies your pre‑pregnancy nutritional status. Though BMI is a simple screening tool, your healthcare provider will interpret it considering your overall health.

No. In the first trimester (weeks 1–13) weight gain is typically small (0.5–2 kg or 1–4.4 lb). Most weight is gained in the second and third trimesters when the baby grows rapidly. Our tool uses evidence‑based weekly rates for each BMI category.

Don’t panic. Short‑term deviations are common. Consistently low gain may be linked to small‑for‑gestational‑age baby risk, while excess gain increases risk for gestational diabetes, high blood pressure, and delivery complications. Discuss any persistent off‑track pattern with your doctor or midwife.

Weighing once a week, at the same time of day and under similar conditions (e.g., morning, after using the bathroom), gives a reliable trend. Daily fluctuations are normal and often due to water retention or digestion.

This tracker is designed for singleton pregnancies. Twin pregnancies have higher weight gain goals (e.g., normal BMI: 17–25 kg) and different patterns. Always follow your doctor’s guidance for multiples.
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