Pregnancy, Baby & Family Health Calculators

Pregnancy & Baby Calculators

Estimate pregnancy dates, due dates, conception timing, fertile windows, period timing, and pregnancy weight gain ranges.

These tools use common planning formulas and show assumptions, examples, related calculators, and clear educational disclaimers.

Results are estimates only and should be confirmed with qualified healthcare professionals for health decisions.

Pregnancy Dating

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Pregnancy Date Calculator

Estimate gestational age, due date, conception date, and trimester timing.

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Due Date Calculator

Estimate an expected due date from LMP, conception date, or cycle length.

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Pregnancy Conception Calculator

Estimate conception timing from LMP, due date, or gestational age.

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Cycle & Fertility

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Ovulation Calculator

Estimate ovulation date and fertile window from cycle timing.

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Period Calculator

Estimate upcoming period dates from last period and cycle length.

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Conception Calculator

Estimate possible conception and fertile-window dates from cycle data.

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Pregnancy Health

Choose a calculator and review the estimate with its assumptions.

Pregnancy Weight Gain Calculator

Compare current pregnancy weight gain with broad BMI-based guideline ranges.

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FAQ

Pregnancy & Baby Calculator Questions

What can I estimate with pregnancy and baby calculators?

You can estimate due dates, gestational age, conception timing, ovulation windows, future periods, and broad pregnancy weight gain ranges.

Are these calculators medical advice?

No. They are educational planning tools only and do not replace prenatal care, fertility care, medical diagnosis, or emergency care.

Why can a clinician give a different due date?

Pregnancy dating can change based on ultrasound timing, cycle history, exam findings, fertility treatment dates, and clinician judgment.

Are ovulation and conception dates exact?

No. They are estimates based on average cycle timing. Ovulation can vary from cycle to cycle, and conception cannot usually be confirmed to an exact day by a calculator.