I have been on the pill for about 4 years now. I missed it for an entire motnh last month and started a new pack on the last day of my last period, but missed 1 and started spotting the day after, the flows were really light cuase I used panty liners but then by the 5th day i had to use sanitary napkins cause the flow got heavier then went back to using the panty liners cuase I keep getting hints that it's stopping only to find out I'm still bleeding. Its now 14 days. What really is the cause of this. Is it true that in every woman's lifetime she will bleed for a maximum of 16 days due to hormone changes or coudl stress be a main contributor to that cuase I've always had regular periods and note that i started spotting only 3 days after my last period.