HIV is contained mainly in the blood, sperm, and vaginal discharge. Infection is spread when one of the three body liquids comes into contact with an open wound on your skin or mucosa. An open wound (defect) on your skin or mucosa doesnât have to be visible to the eye. During sexual intercourse (oral, anal or vaginal) without a condom there are always invisible defects on the genital, anal or oral mucosa and there is a risk of viral transmission. Let me answer your questions:
1. In your case, if the female prostitute didnât have a bleeding wound on her hand, there is little chance for HIV transmission.
2. If the lubricant or lotion she used contains an antiseptic substance, the risk of transmission is somewhat decreased.
3. If the woman had a bleeding wound present on her hand, you can get infected only if you also had an open wound on your penis. If your penis has no open defects, you couldnât get infected. But, as I said, defects are not always visible.
4. In case of HIV-infection, a period of three weeks is not enough for antibodies the against HIV to be produced and detected by HIV tests ...or for symptoms of AIDS to be manifest. You can get an accurate account of HIV antibodies in the system 6 months after potential exposure.
In any case, if you are concerned use a condom in the future and definitely follow up with a HIV test in 6 months and get tested for that and other STDs regularly.