I’m at a loss

I posted a few times about my tests that are coming up positive with the equate early detection brand tests. Every time I take one, it comes up positive and darker than the last (will attach picture) and then I took a dollar tree test (pink dye) and there nothing. Took an 88 cent test from Walmart, and nothing. I’m confused and sad 😩😩 *ALL TESTS WERE LOOKED AT WITHIN TIMEFRAME and pictures were taken**