Please help

Ok, so my period was supposed to come 9 days ago and it still has not arrived. I have been spotting both brown and red with small clots and lots of mucus. It is mostly dark brown and has that "last days of my period blood" smell. I am extremely stressed about not getting my period still and i am 99.99% sure i am not pregnant (because my boyfriend and i only use hands) idk what to do and this is all consuming me. I had been pretty regular up until now and now its been almost two weeks since my due date v.v