I track my BBT every month and this month I used CB ovulation sticks. Normally my BBT goes up once I've ovulated and stays up, and I get a static smiley around the same time (not always exact same day but close enough). This month, I had 7 days of static smileys and then straight back to blank circle, and my temp has also not yet risen and I'm on CD 21 of a normally 28-30 day cycle. Has anyone had this before? Does this mean I didn't ovulate this month?