how accurate are the clear blue advance ovulation test?

I was just curious as to how accurate the clear blue advanced digital ovulation test?? I've been taking them for a while now just to try to pinpoint my ovulation day, I just got a solid smiley face after 7 days so a week! I also had bought The cheaper target up and up brand ones and got what looks like a positive ovulation test are use the same sample for the two, what do you guys think about the results? I will post a photo! My husband and I have been BD for the past two days and also using pre-seed to help us trying to conceive, does the up&up test look positive to you? I'll post the photo with it! We can't BD today sadly but hopefully the past two days work! Comment what ya think please!!