No penetration = No risk. ((rubbing and frottage carry no risk for HIV; with or without the presence of fluids))
"if there was no penetration"
Minimal to no risk. Nude lap dance wirh wet frottage and, I think, no penetration. But I wanted to be sure.
The magic number for the 4th gen is 28 days. Even at that time ((28 days)), if someone has had a high risk exposure, they would be advised to test again at 12 weeks.
At 21 days it is still a great indication, but not conclusive.
Could you tell us what kind of risk you had ?