Your pregnancy has gone 1 to 2 weeks past the estimated due date.

An estimated due date is given by Naegele's rule.

The actual day you deliver your baby is probably not your estimated due date, but it can be helpful to have a time frame.

In the UK, a dating scan is usually conducted around the 12th week of pregnancy to determine the estimated due date.

In the cases of late dating scans, the estimated due date is less accurate which could therefore provoke a woman to be induced unnecessarily.

Therefore it is usually considered advisable to cease taking codeine phosphate 2-4 weeks before the estimated due date, as advised by a medical professional.

Research suggests that scans done after this date can cause the estimated due date to become less accurate, with the longer time that passes.

(The book's format allows expectant mothers to personalize their experience by beginning with their own baby's estimated due date.)

Due dates are notoriously fungible; the official medical term for them is an E.D.D., or estimated due date.

Estimated due date (EDD)