Have any gotten a BFN and then reused test??

For those of u that has gotten negative on Walmart or cheapie test but ended up pregnant and got BFP when hcg picked up I wanted to know if u tried retaking ur test !! The frer ones don’t work ... but I tried it with the Walmart and other cheapie test I had and got lines to show up that wasn’t there at all before I retook the test !! I wanted to see if anyone else tried it ? could it work ? It worked for a lady on YouTube !

I know ur not supposed to reuse!!!

I’m not looking for book answers