Tests

So, when we first started trying, I used clear blue and the purple/white hcg ones. I got negatives on those. Then later one I used more clear blues then I got 2 negatives and 1 faint positive. Then I heard that blue dyes are awful so I switched to first response early results. Which tests are really good to use? Is it okay to go back to clear blue?

I am now 22 dpo & 8/9 days late.