Am I not ovulating ?

Adriana

Ladies I’m new to tracking and today is cycle day 26 , I started to somewhat track ovulation about 15 days ago I bought ovulation test . Which have all been negative. I started testing couple days before my app and according to my cycle that I would ovulate . I’m on day 26 and never got a positive test . Does it mean i didn’t ovulate at all? Is there a possibility that maybe I ovulated right after my period ? Cause I didn’t start testing till about 6 or more days after my period in May . Should I be worried ? What does it mean ? I usually always get my cycle on the 16th or 17 every month .