Missed Period/Spotting

AF was supposed to come the 28th last month, but last month according to glow, on the 17th, I was ovulating and had some spotting. I haven't gotten AF yet and am having spotting again, it's very light. It's not the beginning of my normal period. No cramping but have been feeling tired, nauseated, stomach aches, the runs, and headaches on and off. I don't know what to do. Test or wait?