I dont know what to think. Help please.!

Okay so my last actual period was may 23, I had brown discharge or spotting on June 16 for 4-6 days. Not enough to fill a pad the whole time. I didn't count it as a period bc it wasn't anything like my usual.

I have 28 day cycles, my period usually last about 7 days, starts out bright and heavy then gradually lightens through the days.

Right now I'm on day 51 of my cycle.

I have taken about 8 test all of which were negative or had evap lines.

I have no sign of my period but have some pregnancy symptoms ( tender breast, bloating, mood swings, some nausea, extreme fatigue - tired)

Has anyone else ha this happen and eventually get their period or had false negative test and be pregnant??