Dave is right - this is zero risk.
There is also the fact that STDs like gonorrhea and chlamydia reside at the back of the throat. Since you used a condom, you were protected from those, even though she used saliva as a lube.
Most experts feel that even without a condom, oral sex is low enough of a risk to not warrant testing. You used a condom, so don't worry.
No there is no risk and actually saliva contains digestive enzymes that can kill bacteria as is our bodies first line of defense. Zero risk. dave