So confused

Hey started daily testing at the beginning of my fertile window according to glow. The last few months glow has been spot on. Last month I did have a day of positive ovulation. Last night I definitely felt as if ovulation was coming or have passed because I got my regular side  pain, bloating ect. Took a test in the evening it was still negative. I thought it was odd because I deathly know when I ovulate or about to. Last night in the middle of the night definitely felt that my ovulation pain almost got up to take a test. This morning I took an ovulation test and still negative. I have cramping and a little bit of spotting. And never spot. It was bright red almost like I'd cut myself? Could I have ovulated an overnight and implementation happens that quick? So confused. Fertile window ends today...