I've recently been diagnosed with having Chlamydia, and didn't take it too well as you can imagine, especially as my partner is the only man I've had sex with, so as expected I jumped to conclusions and assumed I'd got it from him. He said that before we got together, nearly 2 years ago, he was tested not long before and came back clean, and used protection with partners between then and getting with me. When I got my results back he then got tested, and his results came back negative. Prior to getting with my current partner I'd only given oral sex once.
If I caught the disease on that one occasion, how have I had 2 years of unprotected sex and not passed it onto my current partner?! He has never cheated on me, I should point out.
Enlightenment please! Or any contribution...! Thanks