How much weight should I gain during pregnancy?

It depends on your pre-pregnancy BMI. For normal weight (BMI 18.5-24.9), the recommended gain is 25-35 lbs (11.5-16 kg).

When does pregnancy weight gain start?

Most women gain only 1-4 lbs (0.5-2 kg) in the first trimester. Steady weight gain typically begins in the second trimester.

Is it safe to lose weight during pregnancy?

Weight loss is generally not recommended during pregnancy unless supervised by a healthcare provider. Consult your doctor for a personalized plan.

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Pregnancy Weight Gain Calculator

Personalized Guide Based on IOM Guidelines

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Understanding Pregnancy Weight Gain

Gaining the right amount of weight during pregnancy helps support your baby's growth and development. The recommendations are based on your pre-pregnancy Body Mass Index (BMI).

This calculator uses the guidelines from the Institute of Medicine (IOM), which are the standard used by most healthcare providers.

Where Does the Weight Go?

Baby: ~7-8 lbs
Placenta: ~1.5 lbs
Amniotic Fluid: ~2 lbs
Uterus Growth: ~2 lbs
Maternal Blood Volume: ~4 lbs
Breast Tissue: ~2 lbs
Fluids: ~4 lbs
Maternal Fat Stores: ~7 lbs (for breastfeeding)

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