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Pregnancy Calculator

Track your pregnancy week by week. Calculate estimated due date, monitor fetal growth, and view trimester milestones.

Choose Calculation Method

Standard average cycle length is 28 days.

Pick valid dates from the selector above.

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Instructions / Manual & FAQs for Pregnancy Calculator

How-to: Using `Pregnancy Calculator` successfully

A clinically compliant pregnancy tracker and due date calculator supporting Last Period (LMP), Ultrasound, Conception, and IVF transfer methods.

Select your prefered tracking method (LMP, Ultrasound scan, Conception date, or IVF Transfer), enter the matching calendar parameters, and view gestational weeks completed, trimester milestones and fruit size illustrations.

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Frequently Asked Questions (FAQ)
Q: How accurate is the Last Menstrual Period (LMP) method?

LMP calculations are based on a 280-day baseline. If your cycle is typically longer or shorter, cycle length settings adjust your due date accordingly.

Q: What is Embryo Age in IVF calculations?

In IVF transfers, gestational age is modified by whether your embryo transfer was a Day 3 or Day 5 blastocyst to calculate the virtual LMP.

Q: Can I calculate pregnancy weeks if I only have ultrasound details?

Yes! Select the Ultrasound scan option, input the gestational weeks and days listed in your ultrasound report, and the tool calculates the exact due date.

Q: Can I access this tool without internet?

Yes! Once apnaTools.com loaded, all calculation calculations take place client-side. You can disconnect completely and the tool remains fully operational.

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