Did you take each test at the same time each day and according to the instructions? I know that some tell you to hold your pee for at least 2 hours, some day absolutely DO NOT use FMU and other say BE SURE TO USE FMU...so that could be a factor if you aren't taking then at the same time each day. I use to have them to where they would do this when I was using OPKs 2 or 3 years ago when me and DH first started TTC #2. I ended up having PCOS though and that's what was causing my funky OPKs.Â