Due Date Calculator
Pregnant? Or think you might be? Use this tool to calculate
your baby’s approximate due date. Just enter the first day of your most recent menstrual cycle
What was the first day of your last period?
Note: Use this calculator as a helpful guide only – please
consult your healthcare provider for more detailed information.
Your due date is calculated using a menstrual cycle length of 28 day and is estimated
by adding 280 days (40 weeks) to the approximate first day of your last menstrual period.
The range of time between conception and birth can vary from 38 weeks to 42 weeks,
depending on the length of your menstrual cycle and the first day of your last period.
Remember that only 5% of women deliver their babies on their estimated due date.