Welcome to the Forum.  I'll be pleased to help.  The exposure you describe was very low risk- most persons do not have STI's particularly oral infections and when they do, transmission of infection is biologically very inefficient.  When infections are transmitted through oral sex, the most common infections transmitted are gonorrhea, non-gonococcal urethritis and rarely, chlamydial infections.  Further, the doxycycline you were taking would prevent infection by each of these processes.  Given the situation you describe, I would not worry, would not recommend testing, and see no need to refrain from sex.

I hope these comments are helpful to you.  Please don't worry.  EWH

Thanks for your thanks.  We try to help although our advice does not take the place of your regular doctor.  Hopefully however, we have provided you with a direction to pursue.

The doxycycline effectively eliminates any chance that you were infected with a bacterial STI.  Your risk of HSV is miniscule.  Our "back of the envelopes" calculations using available data suggest that, if your partner had oro-labial HSV-1 the risk of your becoming infected is somewhere between 1 in 1000 and 1 in 10,000 (HSV-2 is not a meaningful concern).  In the unlikely circumstance that you did acquire HSV, there is at least a 50% chance you would develop and outbreak within 2-3 weeks of exposure.  I am confident that would not happen.  We do not recommend blood tests for HSV to determine if you were infected- in your situation, even with prior negative tests, your risk of having a false positive test result is higher than your risk of discovering you have HSV.  EWH