Glow said af would start the 8th of August, no period I am having back aches headaches sore breasts and i have had som light spotting that lasted 2 days.I took a pregnancy test and it was bfn. I don't know what to do can some one please help me. I took a digital test and the little strips that you get with ovulation. Should I buy the dollar tests. Should I get a blood test idk what to do or should I just wait..😂😂😂please help.