6 days late, still neg!

Je
I am so confused what's going on. I stopped my bc at the end of a pack the first week of November so had that AF then 30 days later had a 4 day AF. now I'm 6 days late according to two apps and 2 days late according to glow (which now pushed expected start date back to tomorrow) and I have sore nipples, cramping for days, occasional heartburn and got a wave of nausea last night. Clear blue was negative again at FMU. Tomorrow starts week 5 and I have no idea what's going on!!