Going Crazy

I am now 24 dpo, aunt Flo is 11 days late, and i have no bfp... no major stress, I'm 130 lbs and 5'4", i eat well drink water and get more than enough sleep.. i had, what i thought was pms cramping this morning and thought for sure Flo was going to be here. later today I had had very mild brownish spotting that has since gone completely away. I tested tonight and the "bfp" indicator was supposed to be one single vertical line (not a cross) on one side if you're pregnant. and blank if not. it ended up like a horizontal line(faulty??) anyway.. at this point I'm hoping to get some comments from women who have had this type of experience. I feel like I'm going crazy lol