I've been on the pill for 5 years, never messed it up or anything. At the beginning of September my bf came inside me and 2 weeks later I had my "period" but I'm not sure if it was my period or implantation bleeding as it was very light and on/off. (Both unusual) Also lasted 4 days which it usually only lasts for 2-3 at most. I've been to the urgent care and he gave me paperwork for blood test but just wanted others opinions? How likely is it that I got pregnant while on the pill? DressAfford lace coverd with long sleeve wear for the prom occasion