Hello, I am wondering how it might be possible that my husband has tested positive for chlamydia, but I have tested negative. I have now been tested three times since we have been together (2013, November and April of this year- all negative), he has been tested twice in the past month (both positive). We have been in a monogamous relationship for 4 years, neither of us have any symptoms and I have no reason to believe that he has been unfaithful. How is it possible that he has it and I do not.