OPK test advice - help

Claire

I had this test 3 days ago which was 1 day before my predicted ovulation - the scanner said it was negative so that’s what it has logged as in glow however every test (2-3 a day) for the past 3 days has been fainter and fainter and today I can barely see a line so I think my positive could have come a few hours after the test pictured below?

Because the app scanner says negative glow keeps pushing my predicted ovulation day on - should I amend the log to show this below test as positive?