Ovulation Tests

Hey all, i have been using advanced clearblue ovulation tests for the past 8 months now (TTC for almost a year) However the past 3 months I have had low then flashy up to 7 days in a row. No permanent (2 day smiley)

Does anyone else have this problem? I have read after 7 flashys to discard and start again the following month. I feel like I want to carry on and test every day until my next period just to check. Feeling deflated.