HIV tests have the most conclusive results when taken 12 weeks (90 days) after exposure. The negative test you had at 7 weeks is a good indication, and, your status is not likely to change without another exposure.
For more information about HIV you can always visit the AIDS Vancouver website.
I hope this information helps to answer your question. Good for you for being responsible with your health and getting tested, way to go!
Isla (Volunteer)
AIDS Vancouver Helpline/Online
@ Ocp
