looking at tests past the time frame...

Before I start, I know I shouldn't even look at a test past the time frame but I did so please don't tell me. 😝
I took a Walmart test this morning and it was negative.. I looked at it a couple hours later and there was a clear line.. it didn't look like a typical evap line. (I've seen a lot of them)
So I took another Walmart test a few hours later and thought I might be able to see a faint shadow of a line.. looked at it an hour later and there's a line, and it looks like an actual positive.. not an evap.
Has anyone ever gotten a bfp on a Walmart test out of the time frame and still ended up being pregnant? I'm having a lot of symptoms that definitely make me believe I'm pregnant. Please let me know if you have any experience that might help me out!