I started bc for the very first time on the 3rd day of my period. My period lasted for 5 days. So it started on Sunday and ended on Thur. (Sept. 6-Sept. 10) I took my pills for six days but sometimes in the mornings and sometimes evenings. During this time I experience some slight diarhhea . I had unprotected sex the Mon. (Sept. 14) and decided to not take anymore pills after that. I experienced spotting and bleeding after stopping the pill. I don't plan to continue in the case I did conceive. Was the pill already effective? Or is there still a chance for pregnancy?