Period or pregnancy

Amber` • Elena Reign 7/26/19💕🤱🏻

AF was suppose to start on Sunday, instead i got spotting on Monday. So AF is almost over, it was light, medium and now its light again. Today i woke up feeling like i wanted to puke, i feel weak, nauseous and a LITTLE light headed. Is there anyway i could be pregnant or??? Ive been drinking water for the past 3 days. Any suggestions on what & why?