Ovulation off the chart??

Alright so I just noticed that when I log in the day I get my period it gives me the days in green that i will be ovulating just like you guys. But I noticed that during the days I’m ovulating I don’t notice anything. My body temperature doesn’t change I don’t have white discharge like nothing and it’s not until like a week in a half after the days I’m supposed to be ovulating when I notice those things. Has it happened to you guys? It doesn’t make any sense to me lol