Ive been irregular since I started getting my periods, but this past few months Ive been having a regular one since I started to have regular sex, okay this is the scenario, around the last week of july Ive got an unprotected sex and he *** in me, after a week Ive got my period, but then before my period I feel some pregnancy symptoms like, being sensitive in what I smell, back pains , being tired all the time and like I need nap, being too emotional and dizzy and vommitting.. after my period I got unprotected sex again but he *** outside, and just yesterday we got sex and he cummed in me again but up until now I havent got my period and Ive gained weight for like 5kilos and tender breast, I still got those other symptoms as well, could I be pregnant or my period is just like acting up again and going back to my irregularity? .. Yeah Ive been stress too lately is that an additional factors why I havent got my period?