Can HIV Be Contracted Through Unprotected Oral Sex?

Question: About a month ago, I had protected sex with a woman and unprotected oral sex with her as well. Then two days after that I had unprotected oral sex and fingered a different woman.

5 days later I got a low fever about 99, the following day I got chills, night sweats,joint pain, and a bad fever above about 102 that broke that same night. The next day, i got a rash that covered my entire stomach, chest, arms and legs. I went to the hospital and they told me they thought it was a viral rash. The rash went away in about 24 hours.

I got an HIV RNA & a 4th generation test done 10 days after the last incident incident and then i got another HIV RNA & a 4th generation test done again at 17 days from the last incident. Both came back negative. I tested the woman that I had protected sex with using oraquick and she came back negative, but i did NOT test the woman that I had unprotected oral sex with.

Could this still be HIV? I have never gotten a rash like that before in my life.

What are the chances that this could be HIV? Based on the two negative RNA tests?

Thanks