OPK Newbie! Pls help! I used clearblue digital test. I got 1 day of blank circle, 1 day of flashing smiley face yesterday and I got 1 smiley face today but NO temp spike... isn't the flashing smiley face last 2-3 days?

Amycar • TTC since FEB 2015 for FIRST Child. 3 IUIs Failed. PCOS and Endometriosis (Stage 4) issues.