Is pregnancy still possible?? Help!!!

I am now 6 days late. I was always on time. But the past two months my period is coming late. This month I swore I was pregnant...three tests later all negative. This month I also have no signs of AF coming. It is so frustrating. I only have constant discharge. I had cramps a few days ago but that went away!  I am 21dpo is pregnancy even an option anymore. I just want my period here...I have no hope that I am pregnant...so I rather my period come so I can start trying again.