FMU and ovulation tests - Please help!

Hi all! I have being using the CVS ovulation test strips this month. I began getting positive results on Friday 9/25 and have gotten a strong positive every day since. The instructions say to use FMU but lots of people out there say not to. What do you think? I got negatives the first 3 days also using FMU so I'm not sure that's the issue. The first picture below is Friday-Monday and the second picture is today's test. Any help or advice? AF isn't due until 10/14 so these positive tests are really confusing me! Thanks everyone!