Ovulation question??

Hi, I'm keen to know on what day in your cycle do you generally ovulate? I've been testing each day with clearblue since reaching 'high fertility' 5 days ago but I have not received a 'peak fertility' result yet, which I guess means I haven't ovulated? I'm at cycle day 12. I know it's possible to not ovulate in a cycle so I'm wondering if I should keep testing for now or if it's too late?