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Fertility Glossary

Due date

The estimated date of delivery, about 40 weeks of gestation.

Pregnancy after treatment

The due date, or estimated date of delivery, is roughly 40 weeks from the notional last menstrual period. After IVF it is calculated from the embryo transfer date and embryo stage, and is later confirmed or adjusted by an early scan. Only a small minority of babies arrive exactly on the date.

Also known as: EDD, estimated date of delivery

Sources

  • South African National Department of Health maternal care guidelines

Last reviewed: 8 September 2026. Written by the Antega Editorial Team. General information only β€” always follow the advice of your own clinic, doctor or pharmacist.

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