Cervix position?

Kelsey • We had our first son, Anderson, in December 2014, and second son, Keary, in September 2017!
I've been reading a lot about tracking your cervix position and firmness, but I'm not sure how to determine if it's high or low. I started tracking my BBT, CM, etc this morning, but this one is still confusing. If anyone has any tips for how to determine positioning, they would be greatly appreciated!