In answer to your questions:
1. No, you definitely do not have HIV, your tests prove it.
2.Yes, you were completely safe because you never had a risk for HIV in the first place.
3. Get counseling if you're unable to accept the fact that you had no risk.
In an adult, only unprotected anal or vaginal sex and sharing IV drug needles with infected users is a risk for HIV. You used a condom, which means you were not exposed.