Due Date Calculation: Ultrasound Dating & Estimated Delivery

To calculate your due date, add 40 weeks (or 280 days) to the first day of your last menstrual period. Since you are currently 7 weeks 3 days pregnant by ultrasound, your due date would be approximately December 26, 2023.

However, please keep in mind that these calculations are just estimates and the actual date of your baby's birth can vary by up to two weeks. It is best to consult with your healthcare provider for the most accurate estimate.