Missing periods !

Tiffany
I havent had my period in 2 months ! I had my first period on august 2 . I missed my period on the 30th of august .. Took a test one said yes but after that it was all negative . Went to the doctor and i was negative . My period qas suppose to come today but all i was feeling yesterday was cramp, moody, dizziness and hungry. All night i was cramping badd . This morning i thought it was just my period coming around ( usually it does) but nothing happened . I dont know what to do .