Hi!
We usually do a chlamydia IgA antibody RIA test--that can come back in 24 hours. The same swab can also check for gonorrhea.
Your doctor may be talking about a culture, but that is a very old fashioned way to test for chlamydia!
If you are concerned, another idea is to just go ahead and take antibiotics "just in case".
If you don't have chlamydia, you won't have done yourself any harm, and if you do, you've gotten rid of it that much sooner.
Good luck!
Dr B