Hey A.,
I'm so sorry you are having to deal with this. I'm sorry to say, but I agree with the other ladies...I think he is to blame. On the website for the Dept. of Health and Human Services, it states that "If symptoms do occur, they usually appear within 1 to 3 weeks after exposure". It doesn't sound like it can be dormant as you have asked. Also it says that "Chlamydia can be transmitted during vaginal, anal, or oral sex." Doesn't sound like there is any other way of getting it.
It does sound like it is very easy to treat though. "Chlamydia can be easily treated and cured with antibiotics. A single dose of azithromycin or a week of doxycycline (twice daily) are the most commonly used treatments."
I would seriously speak with your husband and have him tested and treated. I hope everything works out for you. My thoughts are with you and your family if he is the cause!