Pregnant even with a period ???

I have recently been diagnosed with Ulcers I also have extreme Acid Reflux, but last month or so I have been exausted, nausious, severe headaches, severly bloated, sore(back, legs, shoulders), dizzy(to the point of blacked out), unstable(off balance) and super emotional. I have had my normal period, is there still a chance of pregnancy? What else could be wrong, Im tired of Dr bills?!?!?