help me so confused?????

I recently got rid of glow because I thought my period started but turns out she still isn't here. I was two days late when I first showed signs of af. But now it's four days in and it's still just brown discharge with light cramps. I don't even have to wear a pad. I haven't gotten all negative tests. I have no idea what is going on. Has anyone experienced this and it a BFP or did af eventually show up??