Do You Know Your Curl Pattern?

Do you know your curl pattern? Myself, honestly would i have between 3A-4A hair or Afro/Jeri curl. My middle is a 3C/Afro curl, then my edges are 3A and some other parts are 3B/Jeri curl. I really like my curl pattern, i don't have to use products to achieve these patterns. What curl pattern do you have? Do you have to use products to achieve curls?