Odds of your 10 weeks negative changing ahead is so low, that it is almost close to impossible.
Some reputed experts even claim III Gen to be conclusive at 42 days. Next time wear a jimmy, you don't dodge a bullet every time.
Seven weeks after exposure is too late for ARS to appear. Besides, symptoms are never used to diagnose HIV. Only risk factor and subsequent test results matter.
Unprotected vaginal sex is a risk. And your 10 week test is very promising but not conclusive. You'll need to wait 12 weeks for a conclusive result unless you can get a 4th generation ag/ab test done earlier. It's unlikely that you'd test positive at this point but if you want to have conclusive results with the test you've been using, it will need 12 weeks.
Your tests are highly assuring that you don't have HIV, I will wait for the experts to comment. You should be happy.