Chances of being pregnant

Patient: I had unprotected sex a few weeks ago, a week later I got my period. Is there any chance I could be pregnant? I also have the implanon so I know its unlikely but I just want to make sure

Doctor: Hi,Thanks for the query.I understand your concern.As you are under implanon protection and as you got withdrawal bleeding after having intercourse, the possibility of pregnancy is unlikely.Take care.