When to test for ovulation?

Breanna • Happily married to my best friend! We are trying for baby number 1!!❤️
My husband and i have been trying to conceive for two years... Only for the past 4 months have we been seeking help from medical professionals. My husband was checked and is all good to go. I have highly irregular periods (coming and going when it pleases.. But usually staying for months). My obgyn diagnosed me with endometrial hyperplasia. (Abnormal thickening of uterus walls) I did 3 months of provera to hopefully thin the walls and regulate my period. This month I had a normal period! Came within a few days of when I thought it should and lasted 6 days. The next step is to see rather or not I ovulate. I bought a clear blue ovulation kit. The directions said to start testing on day 5. Which I found a bit odd since day 5 I was still bleeding and most other places I have read about ovulation say to start testing around day 10. Although I have been trying for two years.. Im pretty new to "actively" trying. Lol any advice would be great!! Especially as far as testing for ovulation!