I am a 19 year old male and I had a sexual encounter with a female. We had vaginal sex with a condom for about 15 minutes. Then she began to stroke my penis with the same condom on, so I guess it was possible for her to have her vaginal fluid in her hand while doing this. She then took off the condom and began stroking my penis with the same hand for about 30 seconds and she spit on it as well until I ejaculated immediately after, then I went clean my penis with just water. Let's say that she had hiv which I don't know. What are the chances of me catching hiv? I don't know if this is important to this situation but I am also uncircumcised.