All Calculators
Pregnancy Due Date Calculator
Estimate your baby’s arrival from LMP or ultrasound.
Ovulation Calculator
Find your most fertile days and ovulation date.
Implantation Calculator
Estimate your implantation window and best day to test.
Twin & Triplet Due Date
EDD plus typical delivery windows for multiples.
IVF/FET Due Date
EDD from transfer date (Day 3/5/6) + GA today.
Ultrasound Due Date
EDD from scan date and gestational age at ultrasound.
Pregnancy Chance Calendar
See your daily conception odds across the cycle.
Advanced Pregnancy Chance
Refine your estimate with age, BMI, and factors.
One-Time Pregnancy Chance
Estimate odds from a single encounter.
Fertility by Age
How age affects natural fertility rates.
Miscarriage Risk
Data-driven estimate of miscarriage risk.
Pregnancy Test Accuracy
Estimate accuracy by DPO and brand.
hCG Levels & Doubling Time
Compute doubling time, trend, and 48-hour projection.
Conception Date
Find conception from LMP, EDD, or ultrasound.
Reverse Due Date
Work backward from EDD to estimate conception.
Due Date by Intercourse Date
Timeline from a specific intercourse/conception date.
Missed Pill Risk
Estimate pregnancy risk after a late or missed pill.
Contraceptive Risk
Understand pregnancy risk by contraceptive method.
Combine Methods
Calculate effectiveness when using two methods.
Morning-After Pill Effectiveness
Model effectiveness by hours since sex and BMI.
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.