My last period was on Aug 31- Sep 4 2015 and my period is late it should have been here september 28th tomorrow will be a week my period is late which it's never this late. Im always tired, and hungry but then I'll get nauseous i have also had a lot of different food cravings. I've been having bad cramping lately which i never get, back pain and sometimes hot flashes, constant mood swings and headaches ive noticed a little weight gain, sometimes My period is 1 week late tomorrow usually it's not this late. I took a pregnancy test pains. Could i be pregnant ?