Due or born in November: when was the baby conceived?
A baby due in November was most likely conceived between 8 February and 9 March.
For a baby born in November at full term, from 37 to 42 weeks, conception was most likely between 25 January and 30 March.
Most likely conception date
Enter a date to see when conception most likely happened.
Not medical advice. Every pregnancy is different: ask your midwife or doctor about yours.
Conception date for each day in November
| Due date or birthday | Conception, for a due date | Conception, for a birth at 37 to 42 weeks |
|---|---|---|
| 1 November | 8 February | 25 January to 1 March |
| 2 November | 9 February | 26 January to 2 March |
| 3 November | 10 February | 27 January to 3 March |
| 4 November | 11 February | 28 January to 4 March |
| 5 November | 12 February | 29 January to 5 March |
| 6 November | 13 February | 30 January to 6 March |
| 7 November | 14 February | 31 January to 7 March |
| 8 November | 15 February | 1 February to 8 March |
| 9 November | 16 February | 2 February to 9 March |
| 10 November | 17 February | 3 February to 10 March |
| 11 November | 18 February | 4 February to 11 March |
| 12 November | 19 February | 5 February to 12 March |
| 13 November | 20 February | 6 February to 13 March |
| 14 November | 21 February | 7 February to 14 March |
| 15 November | 22 February | 8 February to 15 March |
| 16 November | 23 February | 9 February to 16 March |
| 17 November | 24 February | 10 February to 17 March |
| 18 November | 25 February | 11 February to 18 March |
| 19 November | 26 February | 12 February to 19 March |
| 20 November | 27 February | 13 February to 20 March |
| 21 November | 28 February | 14 February to 21 March |
| 22 November | 1 March | 15 February to 22 March |
| 23 November | 2 March | 16 February to 23 March |
| 24 November | 3 March | 17 February to 24 March |
| 25 November | 4 March | 18 February to 25 March |
| 26 November | 5 March | 19 February to 26 March |
| 27 November | 6 March | 20 February to 27 March |
| 28 November | 7 March | 21 February to 28 March |
| 29 November | 8 March | 22 February to 29 March |
| 30 November | 9 March | 23 February to 30 March |
In a leap year, the date moves by one day when 29 February falls between conception and the due date or birth.
Frequently asked questions
If our baby is due in November, when did we conceive?
A baby due in November was most likely conceived between 8 February and 9 March. That is 38 weeks (266 days) before the due date. The table on this page gives the date for each due date in the month.
Born in November: when was the baby conceived?
For a baby born in November at full term, from 37 to 42 weeks, conception was most likely between 25 January and 30 March. For a birth at exactly 40 weeks, it is the same date as for a due date that day.
Can a conception date settle a paternity question?
No. This is the textbook estimate. It cannot know your cycle, when you actually ovulated or how the pregnancy was dated, and it is not precise enough to tell apart two dates a few days apart.