Ovulation Test

Caitlin • Mummy to a beautiful 3 year old little girl, Isla Harper ❤️ two angels 👼💕

This month I have had confusing ovulation results I got one random peak on clear blue on cycle day 15 even though my other tests were negative. Anyways I'm pretty sure I'm ovulating just now, I'm just wondering with a positive this dark when will ovulation occur?