Hi, I'm not a doctor but let me give you my take. If you used a condom your risk is 0%.
I have been in your situation and regarding hiv, the more you read about symptoms, you will feel like you have them.
In my opinion your risk is low, you guys didn't even have inter course continuously, but the only way to know is testing.
Lastly, request for a 4th generation ag/ab combo. This can detect antigens & antibodies from 28 days and Is extremely accurate.
Don't worry. Stay strong.
Also I have canker sores in my mouth and muscle aches - can this be HIV? Please help me understand my risk level!!