How many woman actually start their Period the day the Calendar says they will I am usually a day earlier then the Calender but this month it said I would get AF in Oct 19 & I have another Calender that said the same that I use & I didn't get AF ... I have taken a Pregnancy test & it was BFN so I am just wondering should I continue to wait ... The only symptom I could be having at all are sore boobs ...