How many weeks pregnant am I and when is my due date?
Estimate2026 figuresFreeNo sign-up
Today you are
10 weeks and 0 days 1st trimester
| Estimated due date | 30 May 2027 |
| Still to go | 210 days |
| 2nd trimester starts on | 29 November 2026 |
| 3rd trimester starts on | 7 March 2027 |
| Whooping cough vaccine (Tdpa), between | 10 Jan and 4 Apr |
How it was calculated
The estimated due date is the first day of your last period plus 280 days (40 weeks). Only about 1 in 20 babies is born on that exact day.
This is a date calculation, not medical care. The first-trimester scan gives the most accurate date; always follow the advice of your doctor or nurse.
Frequently asked questions
How is the due date calculated?
First day of your last period plus 280 days, that is, 40 weeks.
When does the second trimester start?
At 14 weeks. The third starts at 28 weeks.