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Due Date

When will you hold your baby?

Enter the first day of your last period, your estimated conception day, or the date of a scan. We tell you the expected day, which week you are in today and which trimester — then get a card and a calendar ready for that day.

How shall we count?

The last-period method assumes a 28-day cycle; pick yours if it differs. For a scan, enter the weeks and days from your report.

The link carries only the method and the date you chose; nothing is stored on our side.

Source: ACOG Committee Opinion No. 700 — Methods for Estimating the Due Date (Obstetrics & Gynecology, 2017) — the expected day is 280 days after the first day of the last period, corrected by an early scan where there is one.