OPK question (again- sorry!)

Has anyone ever had a negative clear blue but positive test strip? My clear blue didn't have a smiley face this morning. I don't know why but I decided to test again about an hour and a half later and got this strip result. It looks pretty darn close! According to glow, my window opens tomorrow. (Side note, please tell me I'm not the only one who obsesses and scrutinizes these tests- I feel like I'm going crazy! 😭)