Im very confused

Michelle • A Jersey Girl who is married 2 her soulmate and best friend...suffered 2 miscarriages...also works w/ special needs kids
Ok to start of with....I usually have a pretty regular cycle...sometimes it could be a day early or a day late.  This month I'm 6 days late with cramping on and off for 8 days.  BB are a little uncomfortable but not painful.  Took tests on day 3,4,n 5 after missed af n bfn.  Granted in March my mother passed very suddenly but last month af was only a day late.  Am I still stressed....yes....but not as bad as last month.  IDK what's going on.  At this stage in being late....if I was pregnant...wouldn't I be getting a bfp? Or can I actually miss af completely?