| Weeks Pregnant (on Ultrasound) | |
| and days (on Ultrasound) | 0 1 2 3 4 5 6 |
| Day of Ultrasound | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
| Month of Ultrasound | 1 - January 2 - February 3 - March 4 - April 5 - May 6 - June 7 - July 8 - August 9 - September 10 - October 11 - November 12 - December |
| Year of Ultrasound (yyyy) | |
Please enter the weeks of pregnancy on Ultrasound and Date of Ultrasound, the calculator will return the 1st day of LMP and Due date.
40 weeks is the normal pregnancy time.