Can anyone give me some insight!?

Gianna

I had weird cramping for two days, in my lower abdomen and lower back no bleeding or spotting or anything and now it’s gone. According to this app I should test in 3 days according to ovia I should test in 7 days.. I ended up testing today and got bfn.. is af about to come? I’m so sad? And has anyone had this and ended up being pregnant?