Are you a selective reader? Are you trying to rush out of the marriage?
I thought Marriage Builders was about saving marriages where possible. I think that a lot of the advice offered here is not geared to that. Why are we rushing to assume W had an affair leading to this pregnancy when there is so much (and easily available) evidence that there might be a more logical reason for this?
Chlamydia CAN be dormant in women. A change in body functions such as a lowering of resistance caused by pregnancy CAN be the kicker to wake it up. So your wife COULD have had dormant Chlamydia for years. Pregnancy can also seriously alter a woman‘s hormone levels, making them even less mentally predictable for us men than normal.
Dormant Chlamydia would not pass from your wife to you. Therefore you are still clean.
Here are some quotes from the enclosed link:
http://www.drdaveanddee.com/chlamydia.html"It is possible that your one friend has Chlamydia even though the lab test is negative. This is because the Chlamydia organism doesn't always show up on the test, even though it may be present. It has a lot to do with the type of test and the way the specimen is collected."
"Chlamydia can lie dormant in the body for extended periods of time, with little or no symptoms. This is especially true in the female."
And:
http://health.ninemsn.com.au/asktheexperts/expert2.aspx?id=60513"Chlamydia is a very common sexually transmitted disease that can lie undetected in a woman for years. This is because in around 80% of women there are no symptoms at all, and it is an infection that is not picked up on routine Pap smears. You need to have a specific Chlamydia test done to confirm the diagnosis."
"In my practice, I have found that occasionally someone has contracted the infection from a sexual liaison years beforehand"
PLEASE calm down. Google Chlamydia dormant pregnancy and read about it. Gather the links together along with your results and find some legal way to get the info to your wife.