Pregnancy Chart Due Date

Pick the month your last period started to get a due date chart for every day of that month — with the conception date and 12-week date for each.

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A due date for every day of that month will appear here.

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

Estimated due dates by month of last period, 2026
Last period started inIf it started on the 1stIf it started on the 15th
January 2026October 8, 2026October 22, 2026
February 2026November 8, 2026November 22, 2026
March 2026December 6, 2026December 20, 2026
April 2026January 6, 2027January 20, 2027
May 2026February 5, 2027February 19, 2027
June 2026March 8, 2027March 22, 2027
July 2026April 7, 2027April 21, 2027
August 2026May 8, 2027May 22, 2027
September 2026June 8, 2027June 22, 2027
October 2026July 8, 2027July 22, 2027
November 2026August 8, 2027August 22, 2027
December 2026September 7, 2027September 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.

Frequently asked questions

How do I read a due date chart?

Find the day your last period started in the first column; the due date is in the last column. The chart assumes a 28-day cycle.

Is a due date chart as accurate as a calculator?

Yes for a 28-day cycle — both add 280 days. A calculator can also adjust for other cycle lengths and show how far along you are today.

Why does my chart cover two months of due dates?

Because 280 days later lands in a different month depending on the day: a period on March 1 gives a December due date, and one on March 31 a January due date.

Calculations reviewed · page updated October 6, 2026.