light period, sick to stomach, darkened nipples

hello I need some one help out there b/c I have no coverage yet to go to the doctor but Its coming soon.I started aunt flo on december 21 it was very light and lasted 3 days ( like it did when I was 1st pregnant at 16 but had an abortion now Im 21 )Then a couple of days after the 3day bleed I started to feel sick to my stomach It have been going on every since and aunt flo is due again today(17) but showing no signs of coming. I have had cramping no severe but okay And when I had aunt flo in december 1 day b4 it came I had cramps.This is all from November 24 thats was my last normal perod oh yeah when I was supposed to ovulate I didnt I havent ovulated since NOvember. I am regular every 27 days .and Im very light skinned and my breast have changed they are dark aroung the nipple part. PLease SOMEONE HELP ME i HAD MILKY WHITE DISCHARGE eversince my last 'period" and Its now 8 13 it just cAME down but its soooooo light i dont need anything to stop it with light cramping which I had with my other pregnancy but If im not then why all those symptoms?