Thanks for responding. I am unfortunately traveling for the next 3 weeks so it will have to be immediately upon my return. At least it gives me a little space for now. Thanks again
Testing is a good idea for both of you.
Just go get yourself done and while you're at it talk to your doctor about options.
The best test is a 4th gen HIV test. You will have to ask for it by name. Otherwise, your option is a PCR test. A 4th gen will detect as soon as 3 weeks after an exposure. A PCR will detect as soon as 2 weeks. Since you are having unprotected sex, none of them can be considered conclusive even if you wait 4 weeks or longer.
Now as far as what do in the relationship, you could start using a condom.
And you can say it's because you don't want to get her pregnant. "My boys are extremely potent, according to the doctor," you say. Then you can mention you were also tested for other things like HIV and STDs.
Then you can point out everyone should be tested. And see if she is willing to test. Use a lot of humor.
But use the condom, until you can confirm her status.
Be well