Chlymadia

 I lost my virginity to my boyfriend who also lost his virginity to me. He never had sex, but I had some bad discharge and it came back as chlamydia and I never had sexual relations with anybody and his test came back negative TWICE. How is this possible if we never had any sex partners for the past year? I'm extremely confused. Is it possible that I couldve had an yeast infection or BV that turned into an STD? Help!