How do I use the mucus method
From Audiopedia - Accessible Learning for All
Do not have sex on any day you see or feel wetness or mucus. Or, if you want to have sex on those days, use a condom or a diaphragm without spermicide (these are the only methods that do not change the mucus).
Do not have sex until 2 days after the last day of clear, slippery mucus.
Do not have sex during your monthly bleeding. There is a small possibility you could be fertile and not be able to tell.
Do not douche or wash out your vagina at any time. This will wash the mucus away.
If you are having trouble knowing when you are fertile, or if you have a vaginal infection, you should use another method.