My partner and I just got diagnosed with Chlamydia, I been loyal to our relationship and she says the same thing, however there was a couple of times we had unprotected anal and vaginal sex within the same night, could this possibly be the source of the bacteria? Switching from anal to vaginal during intercourse?

Chlamydia can’t be transmitted by switching between vaginal and anal sex, although other infections can, so make sure you’re rinsing off in between and that both of you urinate after sex.

Chlamydia can take up to three months to show up in your system, so depending on your relationship history, one possibility is that one of you got it several months ago (perhaps from a previous partner) but it didn’t show up on STI test until now. Chlamydia is transmitted through sexual contact with the penis, vagina, mouth, or anus of an infected partner.