Now I'm not sure....

Got a vvfl on Wednesday. Got darker Thursday, Friday, and Saturday. Still faint but darker then the 1st. Took a digital on Friday that said pregnant. 1st thing this morning I got a negative digital and super faint on pink dye (lighter than they had been). Waited a couple hours and the line got darker again but digital still read negative. I'm confused. Is it a chemical pregnancy again?? First two pics were Friday, bottom left was fmu today then bottom right was about 11:30 this afternoon. Thoughts?!?