Can there be a false positive to chlamydia?

I had just posted about me finding out I had Chlamydia and the only person I’ve been with is my fiancé and he says no he hasn’t been with anyone..

Then I get call from my doctor that I might also have BV to take both medications just in case, okay cool but that MIGHT Is messing me up because do I HAVE CHLAMYDIA I AM ABOUT TO BE SINGLE IF I DONT FIGURE THIS OUT!!