Help!

My period suppose to start on the 30 of nov but on 24 nov I started spotting and from then on more spotting everyday I have sore boobs, nauseous feeling, cramp on my lower right and left pelvic , back pain like no other and sometimes I feel like I did crunches I took a test on friday it was negative can anyone help ? Also am spotting still no period to fill my pad up just about two streaks and that's it