Our Pregnancy Calculators

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Pregnancy Due Date Calculator

Estimate your baby’s arrival from LMP or ultrasound.

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Ovulation Calculator

Find your most fertile days and ovulation date.

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Implantation Calculator

Estimate your implantation window and best day to test.

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Twin & Triplet Due Date

EDD plus typical delivery windows for multiples.

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IVF/FET Due Date

EDD from transfer date (Day 3/5/6) + GA today.

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Ultrasound Due Date

EDD from scan date and gestational age at ultrasound.

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Pregnancy Chance Calendar

See your daily conception odds across the cycle.

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Advanced Pregnancy Chance

Refine your estimate with age, BMI, and factors.

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One-Time Pregnancy Chance

Estimate odds from a single encounter.

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Fertility by Age

How age affects natural fertility rates.

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Miscarriage Risk

Data-driven estimate of miscarriage risk.

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Pregnancy Test Accuracy

Estimate accuracy by DPO and brand.

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hCG Levels & Doubling Time

Compute doubling time, trend, and 48-hour projection.

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Conception Date

Find conception from LMP, EDD, or ultrasound.

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Reverse Due Date

Work backward from EDD to estimate conception.

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Due Date by Intercourse Date

Timeline from a specific intercourse/conception date.

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Missed Pill Risk

Estimate pregnancy risk after a late or missed pill.

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Contraceptive Risk

Understand pregnancy risk by contraceptive method.

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Combine Methods

Calculate effectiveness when using two methods.

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Morning-After Pill Effectiveness

Model effectiveness by hours since sex and BMI.

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Why Use Our Pregnancy Calculator?

  • Science-Backed: All calculators are grounded in peer-reviewed research to ensure accuracy.
  • Personalized Insights: Get results tailored to your unique circumstances.
  • User-Friendly: Easy-to-use tools accessible on any device.
  • Privacy Focused: Your data is confidential and securely handled.

Frequently Asked Questions

Q: Is the pregnancy calculator free to use?

A: Yes, both the Pregnancy Chance Calculator and Pregnancy Risk Calculator are free. The Personalized Pregnancy Chance Analysis is a premium service available for purchase.

Q: How accurate are the results?

A: Our calculators use the latest scientific data to provide accurate estimates. However, individual results may vary. For medical advice, please consult a healthcare professional.

Q: Is my personal information safe?

A: Absolutely. We prioritize your privacy and adhere to strict data protection protocols.