Ovulation test

I’ve never took an ovulation test before so I’m not entirely sure what to expect, is this a positive or negative? i know I ovulate because my body tells me every month but I can’t track them because it happens when it happens.. I woke up today with my usual ovulation cramps so this should be the first of my fertile window.. also I know this because only as of recently my periods and ovulation dates have become very jumbled up.. before that my calendars were always accurate for both periods and ovulation dates