No line progression and brown spotting

Jen

I think af was due 2 days ago (I have PCOS and not sure when I ovulated) I took a frer on Thursday afternoon and again Friday morning and the line was there but faint. I took another frer this morning and the line is exactly the same. I’ve also had some light brown spotting this morning (have had that before in a successful pregnancy so know it can be normal) does this sound like a chemical? Pic below of Thursdays test (all others have been the same)