Ovulation tesr

Cheyenne
How do I kmow if I just missed ovulation or if I am about to ovulate? Glow says I should ovulate on the 12 but I'm in a fertile phase. I haven't had a period in between these cycles but I could have sworn I had ovulation pains on sunday. I took this test at 12am just randomly decided to and the line is so dark so I don't know if I missed or I am abour to. Please help these are so confusing to me and its stressing me out