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Pregnancy Calculator
This calculator allows you to calculate your due date, conception date, and fetal age.
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Enter the first day of your last menstrual period.
Last Menstrual Period:
The menstrual cycle is counted from the first day of one period to the first day of the next. It lasts 22-45 days, the average length is 28 days.
Length of Cycles:
The luteal phase is the second phase of your menstrual cycle, after ovulation and before your period. It lasts 9-16 days, the average length is 14 days.
Average Luteal Phase Length:
Calculate
Results
Estimated Conception:
Estimated Due Date:
Estimated Fetal Age:
Change the fields as desired and press Calculate.
Instructions
Explanations
About
Pregnancy Calculator version 0.1
Written by Nicholas Tsakiris Alston
Credits
Developed by Nicholas Alston based on information from the National Center for Health and Statistics