Anatomy
Cervical mucus becomes clearer, wetter and more stretchy in the days before ovulation, which helps sperm survive and travel. Tracking these changes is one of the free ways to identify the fertile window, though it is less precise than ovulation predictor kits for some people.
Also known as: fertile mucus, egg white mucus, EWCM
Related Australia guides
Related checklists
Sources
- Healthdirect Australia (healthdirect.gov.au)
- Pregnancy, Birth and Baby (pregnancybirthbaby.org.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.