Risk Assessment

I apologise if this is too graphic for some people, but i'm just being honest:

I’m a male and yesterday, I attempted to have my first three-way with a female and another guy, but things didn’t go so well.

We all agreed to use condoms when it came to it. But we never got that far.

The woman licked my balls at first (briefly) and then the other guy started eating her out. Well, then he laid back and she started fingering his anus with one hand and jacking me off with the other. I wasn’t paying attention and then, after a while, I look down and she has BOTH hands on my penis – including the one she was using on the other guy’s anus.

I asked her to stop, but she hesitated. She then grabbed my hand and held onto it.

After that, I freaked out and ran into the bathroom and started using some cold water to wash it off went pee. I looked at my genital area and there were no obvious cuts. I left after this.

What I'm particularly worried about is that the next day, I found a very tiny cut/raw spot just below my fingernail. I'm freaked out that if the other guy had HIV, she could have spread the virus to me by touching my hand and possibly the small cut.

The other guy swears he's HIV-negative/disease-free, but you never know.

I just want to know if, in your opinions, was I at any major risk for catching any disease from this? HIV, hepatitis, gonorrhea?

If so, when can I test for an accurate result? 6 weeks?