I realised the last comment was a joke. 😄Although in this area, you can never be entirely sure...
From what I've read, it seems that some males with 5-ARD do produce sperm that can fertilise an egg normally, although it's not common.
"Besides impaired virilization, subfertility is common. Varying causes have been reported including cryptorchidism and abnormal prostate development with low semen volumes and impaired seminal liquefaction, which is mediated by PSA.1,2 Fertility treatments depend on the grade of impaired spermatogenesis and seminal transport. For men with normal sperm concentration and motility, spontaneous or intrauterine insemination is possible. In vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) has been proven successful in men with small and viscous semen samples."
https://www.endocrine-abstracts.org/ea/0071/ea0071028
I wasn't aware of intracytoplasmic injection before, so thank you for mentioning that. I had actually assumed that in all cases of IVF a sperm was injected into the egg - I didn't realise that it normally simply involves the egg and sperm being mixed together.
It seems that at least one of Semenya's children was conceived through "insemination". It's not clear whether that was using his own sperm though.
https://www.news24.com/life/arts-and-entertainment/celebrities/news/caster-semenya-and-wife-violet-celebrate-miracle-baby-on-third-birthday-20220706-2
(As an aside, I was sitting in the front row of the stadium when the World Athletics Championships took place in London in 2017, and Semenya and the other athletes walked out for their race just a few feet away from me. Semenya looked so much like a man in comparison with the women. Clearly that's not how we should judge if someone is male or female, but Semenya's physicality was quite striking.)
The number of different ways that things can go wrong with sexual development is very interesting. It must be very difficult for people who thought they were one sex and then later find out they are a different one.