Ladies! Help! 10 points!!! Am I pregnant or just a period?

I have NEVER had spotting before and I have had my period for a long time. I never get spotting in between periods and I also have never bled light pink blood. The other day I noticed some light pink blood in my panties with a little bit of cramping, My period is not supposed to start until tomorrow and I didn't get anymore spotting or blood after that until today when I wiped I had some red blood. I thought my period was coming but there was no blood in my pee as there usually is and again the bleeding stopped. Usually when I have a period the bleeding doesn't go away. have also felt nasues, I am more hungry then usual but have also lost desire to eat, i have been craving carbs, am having more headaches then usual, am tired, having mild cramps, been lightheaded, bloated, constipated, tender , flatulence, and emotional. Spotting is not normal for me. Could this still just be my period or could I be pregnant??