I had my period last month on the third and my period was suppose to come on around the 29 and it always last four days my cycle is regular but I ve missed it this month and after I missed it later this evening I started spotting then I it started flowing medium and I took a test and it was negative can you please tell me what s going on not to mention all week my back has been hurting all day and week and I ve been having frequent urination and my appetite has increasingly picked up and I m having sleep disturbances at nightlike I m up til one am and then back up at three and then five am and then come twelve pm during the day i slp for almost five hours can I still be pregnant please help me understand all this been happening all week and to include I love certain foods but the smell of it makes me queasy like eggs after my fiancé cooked breakfast I smelled eggs and had to lay down I was feel so nauseous just from the smell