So many people feel that ovulation is a process.  Some even believe that the increase in temperature, slimy mucus secretion means they are ovulating.

Ovulation is an event.  It is that time in a woman's cycle when a matured follicle has ruptured.

There are times when a woman can have all the symptoms of ovulation but may in reality not ovulate.

Let me start from the known to the unknown for this explanation.

https://www.thenews-chronicle.com/ovulation-misconceptions-a-medical-imaging-perspective-for-assisted-fertility-management/