For the last 3 or 4 days i have been experiencing some strange symptoms. I have been really dizzy, hungry, having on and off sharp pains or cramps in the right side of my lower abdomen, i have been nauseous, very tired, back pains in the lower part of my back, and i have been craving different foods. i did have a period last week but it was alot shorter than my usual period is. do you think i could be pregnant and when do you think i should try to test?