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Due Date Calculator

Find Out When Your Baby Is Due!

Our due date calculator can help determine when your baby may be born based on the first date of your last period, the length of your cycle and your luteal phase length.

The luteal phase is the time period beginning with the day after ovulation and running through the remainder of your menstrual cycle (it ends the day before your next period). Typically, the duration of the luteal phase phase lasts between 10 and 16 days – and is generally consistent from cycle to cycle, averaging for most women at 14 days.

Remember that these results are only an approximation, and your actual due date can be earlier or later.
See your healthcare professional to confirm your due date
.

Due Date Calculator

 

First Date of Last Menstrual Period:
(MM/DD/YYYY format)
Average Length of Cycles:
(22 to 45) (defaults to 28)
Average Luteal Phase Length: (9 to 16) (defaults to 14)
Estimated Conception:
Estimated Due Date:
Estimated Fetal Age: