NHS Approved Due Date Calculator

Understanding Pregnancy Due Dates

Our due date calculator uses the same method healthcare professionals employ to estimate delivery dates. By calculating 40 weeks from your LMP, we provide the most accurate prediction of your baby's arrival date.

Frequently Asked Questions

The due date calculator provides a medically accurate estimate based on the first day of your last menstrual period (LMP). However, individual pregnancy durations may vary, and most pregnancies last between 38 to 42 weeks. For the most precise results, consult a healthcare professional.