Massive doubt on lateness

Earth Fairy
Hey ladies, please help me, I'm Desperate. I went off the pill because for 3 months it made my actual period come a week before I finished the active pills (not spotting, an actual period). I thought something was wrong and finished the packet and stopped. My question is: now that I've stopped the pill, should I count the days till my period from the day it started last month (even if it was a week earlier and I still took all the active pills) or from the day I stopped the active pills (I was still bleeding and I should have started my period that day)? Because if I count from the week before, today it's been 28 days without my period, if I count from the week after, I still have a week. Thank you, please reply