Stem cell and organ growing genitals
No one knows if a uterus is capable of producing so-called "Y-eggs", because in persons affected by sex chromosome abnormalities (XXX and more, XXY, X, XYY, etc.), the presence of a functional Y generally produces a male phenotype, whether or not they are sterile or have natural levels of testosterone, because the Y contains the sex-determining gene SRY and other male developmental and fertility factors. In contrast, people with only X chromosomes (regardless of the number) are generally female-appearing, with at least some development of the associated organs and structures.

A second question is whether a male-derived stem cell could be coaxed, hormonally and otherwise, to become a uterus in the first place. An X is already present, so all the purely genetic (though not necessarily epigenetic) instructions are there, but, as far as I know, the question of whether a Y would interfere with the development process has not been answered in humans.