I am a 26 year old female with no previous health conditions. Ever since I started my period for the first time, I have always had my period twice a month. About two years ago, my doctor put me on birth control pills to regulate it. When using bc pills, I have a regular 28 day cycle but when I am off it I go back to normal and start my period every other saturday. If I go off of my birth control and go back to having my period twice a month, would it be possible for me to get pregnant?