first month charting

Michelle
Hello all,
This is my first month charting and above is what I have so far... thought I would ovulate this weekend but doesn't look like that's happened yet. I thought maybe that dip on cd12 could mean ovulation would come soon but there has been no change in my cm at all... in fact it's just been soooo dry. 
Anyone with charting experience have any insight or words of wisdom for me?
Thanks!