Hi I am 18. My girlfriend and I had unprotected sex last Nov.4, 2013 and it was her first day of ovulation. She had her last menstrual cycle on oct. 21- 27. She is on a regular period with a 35 day cycle. After the unprotected sex, she took 4 EC (nordette) at 7:00 pm in the evening which was succeeded by another 4 EC in the morning. After that, we also had unprotected sex on Nov, 6,7, and 8 wherein we used withdrawal method. What are the chances of her getting pregnant?