k so me n my bf had sex on december 3rd my fertility calendar said my fertile days were november 28-december 3rd i calculated it myself n it landed on the 3rd i was supposed to start my period 2day but didnt get it we have sex on saturday december 11th. he came in me both times. i have nausea headaches tiredness backaches and dizzyness what are my chances of ending up pregnant. i have a test but i dnt want to take it and then start my period.