I have just started trying to chart this cycle. I have tried to chart a lon time ago, but never could get it to work. My schedule varies and my sleep patterns vary. I never get up the same time. I thought I may have ovulated on CD 13, because I had some cramping pain the night before and then my temp dropped and then went up on the CD 14. But then it dropped aggain for two days and went up again today. Is there any hope for me being able to tell anything by charting. Or am I a lost cause. LOL My cycles are also never regular. Can anyone help??