Help.. Am I getting AF or not?

Kr

So my af is due in two days according to <a href="https://play.google.com/store/apps/details?id=com.glow.android">glow app</a>(I’m not sure if it’s accurate since I have PCOS). I tested last night and it’s bfn. I’m feeling tired today, had a bad cramps. Below is my bbt chart. Does it look like I’m getting my af or did I tested too soon?