My body is seriously trolling!

Veronica

I have cramping for the past few days now and some very light spotting. AF still hasn't come though I still keep feeling like it is and I am 14/15 dpo (I use ok, bbt and cm top determine ovulation). I've taken a few pregnancy tests the past few mornings (cheap easy @ home sticks). Maybe they are a bad batch? I wish either AF would hurry up and get here or I would get a positive rest ready so I'm not stuck in limbo anymore.