Odds are definitely on your side, I can tell you this no amount of what we can tell you on here is going to comfort you, go get tested, it’s the only way you will gain comfort
The chance IF she was actually infected is there. However, the odds are on your side. The brief exposure can work to your advantage, AND the expert doctors state that in completely unprotected sex the odds are roughly 1 in 1000 for transmission. Test in 28 days.
I’m not sure if this exposure would exactly warrant PEP