Spotting but very faint line

I’m 12 DPO. I have been spotting for the past few days, and it’s brown, pink, and faint red.

Took a test at 11 DPO and could see a very faint line with a smidge of color. Took a test this morning (12 DPO) and the line was a tad darker with just a bit of color but I’m still spotting. AF due in 2 days.

Thoughts? Did this happen to anyone else? What was the outcome?