for the last two months my period came slightly late and started a light pink color and the 3rd day brownish, usally when i get my period i get major cramps to the piont where i am down for a day or two. i feel hungry all the time but i dont want to snack so i stay slim , and i crave green beans like crazy.i get really moody well not moody but senitive sometime. could this mean pregnancy or get checked by doctor