Testing CM???

Megan
Ok, so I know how to check my CM and I know the different consistencies and what they mean (for the most part), but how do I know how to describe it?! I'm a visual learner, and all the pictures I see are of the cervix itself, which is helpful, but I can't do that, I can only test by using my fingers... 
​So here's my question: how can I know what my CM.would be by checking it on my fingers?