Welcome to JA and thanks for the question,
Well i believe what youre asking is what is the incubation period of chlamydia, which means this is the time during which the organism is dormant and does not present with any symptoms. This incubation period of chlamydia is about 1 - 3 weeks during which time you will have no symptoms. Sometimes the tests for chlamydia can also miss this as well during this period.
About 50% of patients with chamydia are asymptomatci that means they have no symptoms at all. These people would need to be tested for the disease and then treated accordingly. The tests for chlamydia are about 50 -90% sensitive that means that 50% can miss the disease. So the normal practice is that we do treat for chlmaydia if someone has some other STD regardless.
If you have been exposed to chlamydia then i would suggest that you wait for 1 - 2 weeks if your asymptomatic (unless youre a pregnant woman then you get tested immediately) and then get tested, if you have any symptoms then you should be treated for it with antibiotics te treatment is pretty simple with azithromycin
You must be treated, even if your test is negative. (CDC
and all STD experts recommend automatic treatment of all sex partners of persons with chlamydia, not just those with positive tests.) Make sure your doctor gives you one of the recommended antibiotics against chlamydia, i you have been exposed to someone with confirmed chlmaydia.
I hope this helps