Maternity & Obstetrics IOM / WHO Gestational Guidelines

Pregnancy Weight Gain Guidance Tracker

Track healthy maternal weight gain throughout each trimester based on your pre-pregnancy BMI and singleton vs twin pregnancy.

Clinical Oversight: Dr. Prema Gunasekaran & Dr. Aarthi — Chief Obstetricians & Gynaecologists
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Specialist Oversight

Dr. Prema Gunasekaran & Dr. Aarthi

Chief Obstetricians & Gynaecologists

Every pregnancy is unique. Timely milestone tracking, blood pressure vigilance, and ultrasound scans ensure healthy mothers and safe deliveries.
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Clinical Basis

The Institute of Medicine (IOM) guidelines define healthy pregnancy weight gain based on pre-pregnancy Body Mass Index (BMI). Gaining within recommended ranges lowers risks of gestational diabetes, pre-eclampsia, macrosomia, and low birth weight.

Reference Guidelines

  • Underweight (BMI < 18.5): Recommended total gain: 12.5–18 kg. Aim for steady ~0.5 kg/week during 2nd and 3rd trimesters.
  • Normal Weight (BMI 18.5–24.9): Recommended total gain: 11.5–16 kg. Typically 1–2 kg in first trimester, then ~0.4 kg/week thereafter.
  • Overweight (BMI 25.0–29.9): Recommended total gain: 7–11.5 kg. Controlled gain (~0.3 kg/week) reduces risk of gestational diabetes.
  • Obese (BMI ≥ 30.0): Recommended total gain: 5–9 kg. Structured nutrition guidance with obstetrician oversight recommended.

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