12DPO...

I have been testing since 7DPO, since then I’ve had sore breast as well as my nipples started to get larger. I’ve been cramping throughout the days as well. Today I am 12DPO, with fmu I took a test and it was a BFN.. definitely feeling discouraged now, even though I feel as if my body is telling me differently.. has anyone gotten a BFP after 12DPO?