Cervical mucus is the discharge that comes from a woman’s cervix. You may have noticed that your cervical mucus changes throughout your menstrual cycle between periods.
It is mostly made up of water, and changes in consistency throughout your cycle. At times, the cervical mucus is considered more fertile, and other times, less fertile. In fact, some forms of contraception not only prevent ovulation, but change the consistency of your cervical mucus to the less fertile type.
This is because it is the cervical mucus that decreases or increases the ability of sperm to get through the cervix and into the uterus and fallopian tubes to fertilize the awaiting mature egg.
That is why it is important to get familiar with your cervical mucus and it changes during ovulation. At ovulation, the mucus becomes thinner and clearer in color. This is to allow the sperm better chances of getting to the egg. At other times of the month, when ovulation is not occurring, you should notice that your cervical mucus is thicker and whiter in color. It is acting as a barrier to sperm, and is considered less fertile.