Including a single documented case of someone with xy chromosomes getting pregnant, and cases of people being able to produce either ova in Male appearing bodies or sperm in Female appearing bodies. Theoretically both are possible simultaneously, giving self fertilisation potential, but hasnt been observed.
External genatalia appearance for this is subject to testosterone levels during gestation. Its typically ambiguous, however heavy testosterone levels while in the womb (perhaps mother was on hormone patches?) and genatalia will be very Male at first glance, with erections, but smaller testes. And if shes one of the 50% of those with this condition, she'll start ovulating during puberty.
Theres also a 12% chance she could be able to "father" a child. Attracted to Male bodies will mean this is unlikely to come up, but she could find an equivalent person with the same condition who identifies as male and she could theoretically impregnate him.
From the wikipedia link:
There are extremely rare cases of fertility in "truly hermaphroditic" humans. These individuals typically have functional ovarian tissue, but underdeveloped testes that are unable to engage in spermatogenesis. As a result, these individuals are fertile, but not auto-fertile.
There is evidence that 50% of individuals with ovotestes can go through ovulation but spermatogenesis is rare.
Spermatogenesis has been documented in 12% of cases.
As of 2010, there have been at least 11 reported cases of fertility in true hermaphrodite humans in the scientific literature, with one case of a person with XY-predominant (96%) mosaic giving birth.