Pregnancy
A dating scan measures the crown-rump length to estimate gestational age. After IVF the due date is calculated from the date of egg collection or embryo transfer instead, since conception timing is known precisely — tell your maternity team you conceived through IVF so dates are set correctly.
Also known as: 12 week scan, gestational age scan
Sources
- Pregnancy, Birth and Baby (pregnancybirthbaby.org.au)
- Healthdirect Australia (healthdirect.gov.au)
Last reviewed: 10 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.