Hi doctors,. I took a unwanted 72 pill after 90 hours , i know it is late , but there was no bleeding or side effect , of the pill, and now 3 days before my period date ,i started bleeding ,flow was  little lighter than normal , but still changed good amounts of pads it lasted 4 days and it was like period blood , not light spotting , ..is it period bleeding or due to pill (but it has been more then 12 days i took the pill). If it is due to pill , Can i be pregnant ..im scared , Or it's just periods with pill side effects , ..