3-4 days late, bfn...still

I've been posting updates so here the next one. I had a bfn this morning. According to glow, I'm 4 days late but AF is always that day or the day after so well say 3-4 days late. Had a few bits of mucusy light brown discharge (not even enough or dark enough to noticed if I wasn't examining so hard). Just when I used the restroom. Some dull cramps (not painful, Just annoying). Typically AF cramps knock me on my ass from the pain. Broke down and bought FREE instead of the cheap ones. I made the hubby hide them until Christmas or later depending how I feel. I've had headaches every night the past 3 nights. Can't keep my eyes open (I wake up at 430/5 for work though) but I'm more tired than usual. That's all I got going on though. So my update is really no update at all lol