pregnancy symptoms

Love

is it possible to be pregnant after a period? I can't even say if my period was normal or not because I can't remember but every since I've gotten off I'm super nauseous, always tires, sore boobs, back aches, the runs (poop), very emotional, and cramps. I can't say I'm always hungry cuz I eat alot but idk why I feel like this if I just had a period 14 days ago. I know it did last 4 days\5 days regular. could it be a stomach virus or anything else making me feel this way?