Nausea,uncomfortable,bloated,increased cervical fluid, constipated, tired and hungry , could i be pregnant? or something else.

Difficult to say...: If you have not missed a period you are not pregnant. Your other symptoms could be due to multiple conditions -- to many to list here. If these symptoms are persistent see your primary doctor for further testing including lab work (CBC, TSH, etc).

Could be: Get a home pregnancy test and if still having symptoms please see your doctor for a full history and exam. Good luck