OPK test l! I'm going crazy!! Help please!!

Kandy • 43 year old TTC... Keeping the Faith!
Hi ladies, I took an ClearBlue "Advance" Digital Ovulation test (purple holder) and it came it with a "Solid" Smiley Face. I also took another test but it was ClearBlue "Digital" Test (pink holder - Not Advance) and it came out "O" - negative! I had flashing smiley face the whole week and I was wondering if this is my "Solid" smiley face that I was looking for - should I mark it down in my calendar as my "Peak" or did I miss my window (hope not)!! Please help. Today Marks CD13!