Retrograde Ejaculation in an HIV positive patient

If my partner happens to be HIV-positive and has retrograde ejaculation, where he can't ejaculate due to a spinal injury a long time ago (I am unsure of his status, and fairly sure he is negative, but this is a hypothetical question...for he does have reverse ejaculation in real life) and we have unprotected sex, could I catch HIV from him even if his semen goes into his bladder? I haven't heard any answers on this rare situation.
I recently had unprotected sex with my partner. We usually use condoms. I believe he is safe, but I became worried because I know he has had risky blood transfussions before and shot up heroin. He said that he donated blood and that he learned he was clean, but a tiny part of me is paranoid/scared that maybe he does have it. I also want to know if a guy has retrograde ejaculation and can't ejaculate properly, does that mean an HIV-negative partner cannot transmit HIV from the positive partner unless there is blood involved? What possible STD's  are still transmissible, if true? And is there any risk of pregnancy if he is indeed unable to ejaculate?
In the past, when giving a blow job, I have noticed a tiny tiny bit of fluid. What is that, since he can't ejaculate and was diagnosed with this condition 14 years ago, but since he says he hasn't had sex until me, I don't believe he has inquired about his condition at all.  If it is a spinal injury, is there much chance of rehabilitation?
Thank you.

[lookin4answers80]

This seems more like a question for the doctors forum. I really don't know the answer. The fluid you've noticed is probably pre-seminal fluid, i.e., precum, and if that's what it is, it can carry and transmit the HIV virus. Other than that, I don't know what to tell you.

[evenflow1121]

First of all whenever you are going to commit to a monogomous relationship, you should get tested for any stds including HIV anyways.  So before the Jimmy Hat comes off, it wouldnt hurt to test.  If he has shot up before, shooting up carries the highest risk of infection, yet its not like all drug users have hiv either. So dont assume he has it or may have it based on that.  I know that there is a study in Switzerland where a group of doctors are saying that if a person is undetectable and has been on retrovirals for x number of months ( I believe its 6) that they could have unprotected sex or whatever, listen this virus has been around for over 25 years, and the 99% ways of catching it are either through intravenous drug use or unprotected sex.  So whether he ejaculates into you or not, is not an issue, if he were to be positive then you should definately be wearing a condom.

Yes you can still get pregnant though its hard from that fluid, and yes you can still catch HIV from that fluid.  You can also catch genital herpes, clamidia, syphilis, gonorrhea to name a few.