Yep - AJ is totally right. NO way to get it other than sexual intercourse.
Sorry :(
The good thing is that it's curable after a one time, 4 horse pill dose and a weekish of waiting, so if you're tests come out positive, take the pills, wait a week, and have fun being single again.
Uppa
The only way to get chlamydia is sex.
If your bf tests negative, I would wonder about the accuracy of your test results, but since you've already taken the meds, you won't know for sure.
He should go ahead and treat anyway, just in case.
And do NOT have sex until you both have been treated, and until 7 days after he's been treated.
If his results are positive, someone had sex with someone else since your last testing. Sorry hon.
AJ