HELP!! how accurate is hiv antibodies test after 3 months?

after a sexual exposure i tested negative HIV 1&2 antibodies screen test is that enough to take stress out?

the 4th generation test ( which tests for antibodies and antigens) is conclusive at 12 weeks.

usually by 12 weeks if you are infected you would have produced antibodies. so the fact youre negative means youre likely not infected

I also would wanna add that i don’t know the status of the person.