Hello Doctor, Hope You Are Doing Good!! I Had Protected

Hello Doctor,
Hope you are doing good!!

I had protected sex with a sex worker and later I was worried about HIV, so I got tested on first week and fourth week after the exposure.

I took HIV 1 and 2 (electrochemiluminescence immunoassay) Serum test and both the time the results came as NON-REACTIVE on first and fourth week.

Can you please tell me am I safe from HIV now, I'm really worried about this, please answer me!!

Thank you.