At the time of ovulation, some discharge may appear. More commonly known as white discharge or clear discharge actually cervical mucus. Cervical mucus is made up of water, minerals and proteins. It is watery, clear and stringy in appearance before ovulation. About four days before ovulation, it is slippery and looks like raw egg white. This discharge becomes increasingly opaque, elastic and sticky as ovulation approaches. White discharge after ovulations are sticky and opaque. A yellow discharge after ovulation may indicate a problem with vaginal bacteria or an STI. So observing the composition of the discharge is another good way to determine if ovulation is approaching or has occurred.