How to chart tmi

Hey so I was checking my cervical pos and CM 2 days before period is due. 
But what do I chart? I check in the shower, first check standing up i could feel it low-mid . CM only under my nail it was creamy white (long fake nails) 
Second check I thought I would try sitting down cause I find it hard to tell if open or closed so thought I could concentrate more if I sat down and I couldn't feel the cervix at all and had CM on my fingers now I was like wth. 
Stood up again for one last try and it was mid-high little less CM 
All CM was white cream 
How would u chart this in the app so I can document trying this now haven't documented position or CM before . Please respond with answers