Can u get HIV from anal sex but both men don't have HIV

Think. If both men don't have HIV then no transmission. However as you know there are other STDS and there is a window of time from exposure to HIV to HIV showing up positive in the lab tests. This window can range from 9 days to 3-6 months. So that is why condoms and PrEP is recommended. Learn the facts. Go to CDC PrEP Resources Page.