Hi I Had Sex With A Girl 1week Ago With

Hi I had sex with a girl 1week ago with a condom but I did not ejacculate within 5 minute the condom burst out and I came out side and clean myself with a tissue and I put on a new condom and finish from were I stop and the next day I when to the hospital and the doctor said she is positive but I was negative after the sex I clean myself with a 45volt liquor do I think I may have any chance of being negative after 3months