Ava tracker???

Amber

I have been trying to conceive since April 2017 and found out late July that I was pregnant. A week later I had a miscarriage and have been TTC again ever since but have been unsuccessful. I started looking into the Ava tracker but before I spend 249 I would like to see if anyone on here has an input about it? Pros and cons. Has anyone on here gotten pregnant after using it? Anything helps.