2 days ago I enganged in risky sex ...

Hello and thank you for posting your medical question on E health forum.

The majority of HIV infections are acquired through unprotected sexual relations. Complacency about HIV plays a key role in HIV risk. Sexual transmission can occur when infected sexual secretions of one partner come into contact with the genital, oral, or rectal mucous membranes of another.

Risk of acquring HIV are as follows:
A. Female-to-male transmission is 0.04% per act and
B. Male-to-female transmission is 0.08% per act.
C. The rate for receptive anal intercourse is much higher, 1.7% per act

Unprotected sex with a partner with unknown HIV status definitely increases the risk of infection. If possible try to ascertain the HIV status of your partner.

From the history given it seems that the risk of infection is high. Unprotected Anal sex has a higher risk of infection of the urinary tract. The penile burning sensation could be due to penile mucosal erosions.

In addition to the tests already done, you might consider to a urine analysis and culture sensitivity to rule out UTI. The infection and the symptoms, if due to UTI will subside with at least a week of treatment. It is still early stages of infection, and you need to complete the course of the antibiotics given.

You might also consider to get tested for HIV after consultation with your doctor who can provide reassurance and also can clear all your doubts that you may have. Until then avoiding sexual contact with your spouse might help spread of infection. You might in future consider to follow safe sex and use protective measures.

I hope this is helpful.