first off all my spelling is really bad, .. 

i waz 8days late on my period and then i cam on my period but it waz very light i waz spotting then by the end of the to days of cuming off i was on very heavey i toke a tast while i waz spotting and it cum up neg. 
this waz like 1week ago now, for the past 3days iv had really bad back ace im gaining waigth like made and im a smoker but keep seem to smoke a hole fag i dont no if im being paraiond. am i pregnant? 

any ansers?