OPK Question

Courtney • Wife 💑 Nurse 💉 Mama x2 💙💗

This is my first cycle using OPK’s. I am 2 days into my FW and still negative OPK. My predicted ovulation day is the 8th. Glow has been quite accurate with my periods, I assume it would be pretty accurate with ovulation as well. Should the OPK’s still be negative? When do you get your positive OPK in relation to FW?