Period symptoms 2 weeks before? Or implantation from ovulation?

Is it possible to have some period symptoms like 2 weeks before i start?? I am due to start my period on Aug 2. Today is my last day of ovulation.. I wokeup with some slight tummy cramps... and a tiny, very tiny amount of blood when i wiped when i went to the restroom Last i also started having frequent urination and this morning a bit of that. My fiancé and i have been having sex, unprotected (i know stupid of me) he never came in me at all so idont think its pregnancy. My question is, am i maybe just having some early period symptoms and gonna start early maybe?? Or is my ovulation just causing those symptoms, maybe implantation?