Faint line that dried into a faint + ? Or BFP?

Okay okay. I know we aren't supposed to go back and look at our tests after the alotted time frame but I know I can't help it and neither can some of you lovely ladies! 😂 But within the time frame it was definitely a faint line. But when I went to throw it out, I seen that it dried and has a bit of a pink tint to it? Either way I'll definitely retest. But I'm just wondering if any of you ladies went back and look at a test and it dried to a faint positive or bfp ? And it turned out to be true? Just wanna hear some feedback. It's not just with first response either. I also took a dollar store cheapie the other day and went to throw it away today, and it's no line at all. But I took another dollar store tests (yesterday) and came back and it has a prominent line also?? I'm very confused. And I've started spotting as well. I will post more pictures of the test if anyone wants to take a look!