Mother & Baby
When's the baby coming?
Estimated due date and current week
The estimated due date is calculated with Naegele's rule — 280 days (40 weeks) from the first day of your last period. Enter the date to see your estimated due date and current week.
Estimated due date
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Current week
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🔒 The data you enter is processed instantly on your device. We don't save or collect anything.
This result is a guideline — only about 5% of births happen exactly on the calculated date, talk to your doctor.
Naegele's rule, the standard formula used in obstetrics to estimate due dates.