Period is 6 weeks late with all negative pregnancy results.

so here is my story.  any advice or similar stories, please help me out because I feel so confused and lost-  I stopped taking my birth control in May.  it is now July 6th and I should've gotten my period atleast twice already.  I haven't had any sort of bleeding at all except for a single day of brown guck (sorry) ONLY when I wiped in like, the 3rd week of May.  I have taken atleast 6 pregnancy tests at home, as well as a blood test over a month ago-  all negative.  I know that sometimes when you go off the pill your period stops for a while, but it has been a long time and never in my life have I ever missed a period.  as a matter of fact, before going on the pill I had the opposite problem-  I bled  A LOT!  so idk what's going on with me.  I seem to have some pregnancy symptoms.  I even have this weird popping kinda feeling in the area where you'd usually have cramps.  I've been extremely tired and my boobs have been a little sore.  my Dr. wanted to put me on a prescription to bring on my period but I declined.  I'd rather it come naturally if it's even going to come at all.  Any advice?  is it possible that even with all these tests I may still be pregnant?  could I have even gotten pregnant after that blood test was taken?  I'm so lost and frustrated.