Help!

Allyson
I am currently TTC. I have experienced 3 miscarriages so far. 
My question is, how accurate it this app for fertility? 
According to this app my fertile window closed yesterday, and today I am having a milky, thin, and slippery discharge. My research says that this type of discharge occurs BEFORE ovulation! 
I am hoping to begin ovulation tests soon to more accurately monitor my cycle, but is there any advice you all could offer now?