Pregnant or just coming down with something?

For 5 days I've felt terrible. Headaches. Hotness. Especially my face. Feeling sick. Upset tummy. The first 3 days bleed very lightly for 3 days of dark blood then nothing and I'm not due my period yet. I can't sleep very well. Symptoms are worse at night and morning. Everything is making me gag this morning. I'm sip of water away from chucking up. 
Update. I'm now not feeling nauseous now as it's the middle of the day. It usually only creeps up on me in the night and morning. I still have a banging head. This happens everyday. 
Between 8-13 days past ovulation.