HIV has no specific symptoms. There are no tests marketed or sold to give a conclusive negative test result earlier than 3 months post exposure.
Early hiv symptoms are very high fever, VERY sore throat and a rash on the body. Usually lasts 1 - 2 weeks.
The experts say a test at 6 weeks is conclusive in spite of the legal window period still being an outdated 3 months.
Also, chance of contracting hiv from a one time exposure is 1/2000. That's IF the partner is positive which yours likely wasn't.