Thanks for posting and sharing your story with us. It sounds like this is really, really difficult for you, and understandably so.
First, there is no such thing
as a vaccine that prevents STDs. There is an HPV vaccine that is only approved for women, and of course a hepatitis vaccine, but nothing for other infections like chlamydia, gonorrhea, etc.
The info below is taken from CDC Treatment Guidelines at http://www.cdc.gov/STD/treatment/2006/u ... is.htm#uc4
. You should check with your healthcare provider to see what's recommended for your specific case.
Normally women aren't urged to retest for chlamydia until about 3 months after treatment, but you should check with your healthcare provider since it's not clear if you might have been reinfected, or exactly what your partner's status might be. It's usually recommened to wait a week before having sex after a one-day course of treatment for chlamydia, for example.
Your partner should probably also be tested again, so have him check with his healthcare provider about this. Remember that many cases of chlamydia don't involve symptoms, so you might be smart to not have sex until you get a better confirmation of whether or not you and/or your partner need to do anything else.
I hope this helps! Post again if you have questions and if you don't mind checking in later to let us know how you are, we'll appreciate hearing from you.