Very faint line

Girl

I should of started my period Friday. I’m taking progesterone pills. I had one more dose to take but I got spotting on Thursday. Light spotting but some red blood. Not much red mostly dark spotting. Then Friday very light dark spotting. Then Saturday virtually clear all day. Occasional spotting. Today some very very light spotting of brown. Only when I wipe have I seen this. I took a test today but not first morning urine. I posted a picture earlier and a few people saw the faint line also. I’m not sure what it could mean since I’ve had spotting but brownish for the most part. It’s a clear blue so I know the dye can sometimes be misleading on those. Anyone have any advice or comments. I would appreciate some help. I will retest tomorrow with a pink dye test. Been ttc for 3 years and I have pcos.