chlamydia

so i just got the call that i tested positive- i haven’t had sex in almost three months, and before that my last partner was only during the month of July. how long can you have it without knowing? is it possible that it was from the July partner and i could have unknowingly given it to my last partner, or is it more likely that i got it from my last partner?

also, i go to the pharmacy today to get my treatment- what is that? pills for 2 weeks or just 1 pill?