Birth control

Patient: Hi, i have recently just had the implant inserted around about early november 2013.. I came on my period on the 7th of december 2013 and up to this day im still bleeding not heavily just spotting, i saw a GP and they prescribed me with some contraceptive pills to calm it down. I took my first pill and later on that evening i had sexual intercourse with my partner and condom accidentally ripped.. What are the chances of me getting pregnant and is there any more inforrmationThank you