Am i pregnant?

Lately, i haven't been feeling the same. Im feeling so nauseous, been having terrible cramps. Ive gotten alot of mucus discharge. Which has never happened to me before. I took two pregnancy test and nothing. Just a ghost line. I came back and saw this. Ive taken the same brand pregnancy test before months ago and never had this happen. Never had an "evap line" has this happened to anyone before?