Im on Ovcon 35 Birth Control. I take my pill everyday not always at the same time, but never missed a day. My boyfriend and I have unprotected sex. the only other form of birth control we use besides the pill is the pull out method. i started my last week of pills when my period is suppose to start on Sunday... it is now Thursday, and nothing. the only thing that happened was a little discharge when I went to the bathroom today that looked a little bloody. I have had a tampon in just incase and have changed it regularly today, and nothing. could i be pregnant?