Please help with your opinions (read post)

Right to left is three days of tests the far left being today. I thought the first was start of BFP then I started to spot. They werent progressing so I thought they were just idents lines and that frer was rubbish but today’s is definitely pinker. I’m now spotting brown I thought was my period as how it usually starts. AF is due today. Should I be concerned or is it as thought idents. I’ve spent so much money on tests this month don’t want to buy anymore.

I had a faint line on CB 3 days ago but negative IC. They would be clearer by now on day AF is due right?