Help with counting days

Hi All,

I need some help with counting days after trigger shot. I had my trigger shot on the 24th so I assume I would be now 10 days post trigger if I include the day of the shot. Do you count the day as well and would I be 7 days post ovulate if I supposedly ovulated 3 days after trigger. I don't know why but this confusing for me. Any help would be appreciated!