Weekly guidance based on your BMI
Enter your pre-pregnancy BMI and current week. We show a suggested cumulative weight-gain range and a simple visual so you can see how you’re trending over time.
Log your weight by week to visualize progress.
Compare to suggested ranges for your BMI category.
Learn what influences healthy weight gain across trimesters.
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BMI-based guidance: Suggested ranges vary by pre-pregnancy BMI category.
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Weekly view: We present a cumulative target range by week for easier tracking.
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Units: Use lbs/kg interchangeably; we show both for convenience.
Every pregnancy is unique. Always follow your clinician’s guidance if it differs from generalized ranges.
- Log weights at the same time of day
- Use the same, level scale each time
- Discuss rapid changes with your provider
- Morning sickness, edema, and hydration can affect readings
- Ranges are guides, not strict targets
Do you support both pounds and kilograms?▾
Yes, you can enter either and we’ll show both for clarity.
What if my provider’s advice is different?▾
Always follow your clinician’s guidance tailored to your pregnancy.
Is weight gain the same for twins?▾
Twin pregnancies typically require higher total gains—around 37–54 lbs (17–25 kg) for those with a normal BMI. Discuss your specific needs with your provider.