Anyone get 2 vvfl and then a negative an still turn out pregnant?

Please read whole post not asking if my test or positive or not asking if anyone had this happen thabk you.

Ive taken 3 dollar store test all have a vvfl on them then today i took a frer and its clearly negative. Im very confused as i have had all pregnancy symptoms im extremely bloated back pain light cramping and had some off an on spotting for 4 days.

Top 2 are my positive bottom 2 are my negatives. Jusy very confused