A due date for every day
Due date charts were used long before online calculators: find your last period on the chart and read off the due date. This version builds the chart for any month you choose, with a row for every day. Each row shows the estimated conception date (about two weeks later), the date you reach 12 weeks — a common time for the first scan — and the due date, 280 days after the last period.
Due dates for a period starting on the 1st
| Last period started in | If it started on the 1st | If it started on the 15th |
|---|---|---|
| January 2026 | October 8, 2026 | October 22, 2026 |
| February 2026 | November 8, 2026 | November 22, 2026 |
| March 2026 | December 6, 2026 | December 20, 2026 |
| April 2026 | January 6, 2027 | January 20, 2027 |
| May 2026 | February 5, 2027 | February 19, 2027 |
| June 2026 | March 8, 2027 | March 22, 2027 |
| July 2026 | April 7, 2027 | April 21, 2027 |
| August 2026 | May 8, 2027 | May 22, 2027 |
| September 2026 | June 8, 2027 | June 22, 2027 |
| October 2026 | July 8, 2027 | July 22, 2027 |
| November 2026 | August 8, 2027 | August 22, 2027 |
| December 2026 | September 7, 2027 | September 21, 2027 |
The table above shows the 1st and 15th of each month of this year. For other days, choose your month in the chart tool above.
If your cycle isn’t 28 days
Charts assume ovulation on day 14. If your cycles are regularly longer, add the extra days to the due date; if shorter, subtract them. For example, with a 32-day cycle add 4 days. The Due Date Calculator does this automatically when you enter your cycle length.
Want the chart from a conception date instead? See the Conception Due Date Chart.