Mira Analyzer

Has any one ever used a Mira Analyzer to document ovulation and had back and forth readings everyday? This analyzer gives a number readout and I bought it for this reason because I think my hormones may be a little off. But like yesterday my level was a 9 which it considers low but it had trended up and I’m on cycle day 15. Today I was down to 5? I’m am very confused what my body is doing or if this is normal. Hopefully someone can shed some light on this for me.