Cervical mucus, or ovulation discharge, changes throughout your menstrual cycle. If you're trying to get pregnant, tracking your cervical mucus is a useful way to predict when you'll ovulate and when your body will be most receptive to your partner's sperm. Look for egg white discharge – this cervical mucus is clear and stretchy like raw egg whites. Egg white discharge means you're about to ovulate, and it's your most fertile time to try for a baby! To see the various cervical mucus stages, check out the photos below.