I am on the pill, about a week ago i was spotting and not i'm 6 days late for my period. does this mean i'm prego? or could it just be the pill?

Your hormones are in: .. flux for some reason. Irregular periods and spotting could mean you may have some hormonal imbalance that could be affected by many different factors, including age (if approaching menopause?), nutrition, illness, exercise (or lack of it), body girth, psychological well-being, stress, season, or simple fluctuations of other related hormones (thyroid for example). Not likely you are pregnant.