As the cycle proceeds, you’ll notice an increase in the amount of mucus with an often white or cloudy appearance — and if you try to stretch it between your fingers, it’ll break apart. As you get closer to signs of ovulation, this mucus becomes even more copious, but now it’s thinner, clearer, and has a slippery consistency similar to an egg white.
Put together with cervical position and BBT on a single chart, cervical mucus can be an extremely useful (if slightly messy) tool in pinpointing the day on which you are most likely to ovulate — and it does so in plenty of time for you to do something about it.
Cervical mucus is the discharge that you see in your knickers or on toilet tissue when you go for a wee.