do not know her status if she has HIV positive or negative

Welcome to e health forum.

Here are a few facts that you need to understand about oral sex and HIV.

There have been no studies measuring the risk of getting the AIDS virus through oral sex alone. But available evidence suggests that:

1. HIV is not easy to get from any kind of oral sex.. The risk is much lower than that of unprotected penetrative anal or vaginal sex. This is because HIV is normally only present in saliva in very low levels that are not sufficient to cause infection. The linings of the mouth and throat are very resistant to viral infections such as HIV, so infection is unlikely if they are healthy.

2. Bleeding gums, gum disease, and sores in the mouth can make it easier to get infected with HIV through oral sex.

3. Active partners (giving oral sex) have a higher risk of HIV transmission, specifically, if they have oral ulcers, sores or cuts in their oral cavity and in case, there is ejaculation in the oral cavity.
There have been no recorded cases of getting HIV in receptive partners. (people receiving oral sex)

Transmission of Infection via oral sex with a partner can be prevented by - using a latex barrier. Ex. a condom (latex or polyurethane) on the penis; or a latex barrier between the mouth and the vagina (a natural rubber latex sheet, dental dam, or a cut-open condom that makes a square or a plastic food wrap).

Hence as explained above, the risk of infection in your case appears to be very less.

In case you are very anxious to know your status, it is advisable to undergo the HIV ANTIBODY 1/2 and P24 COMBO TEST which has a 100% Sensitivity. (reactive within 4 weeks of exposure).