I'm 19 y/o. I had an unprotected intercourse last Nov. 11 at the last day of my menses which is characterized by spotting. We were successfully practicing the "pull-out" method. My period started nov3 and ended nov.11. Last nov.30, we had another intercourse, which was unprotected and with the "pull-out" method. I am expecting my period on dec.1 and it doesn't arrive until now. Dec.4. "myCycles" changed and suggested that i'll be having my menses on dec.5 am i delayed? Could I be pregnant?