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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:
Estimated Due Date:
Estimated Fetal Age:
Change the fields as desired and press Calculate.
Pregnancy Calculator version 0.1
Writen by Nicholas Tsakiris Alston
Developed by Nicholas Alston based on information from the National Center for Health and Statistics
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