Expression studies in mice revealed that SOX9 is present in both sexes genital ridges, but after the initial development, is upregulated in males and switched off in females The initial reproductive tract of embryo consists in two non-sexually differentiated gonads Jost ; Vainio et al.
Development of the female genital organs in cobaias C. Two functioning copies of DMRT1 are therefore required to support testis development in mammals
Some time after the thirteen week of gestation, pregranulosa cells begin to aggregate around the primary oocyte, forming primordial follicles. It only dealt with the right hemisphere being more developed than the left side. Inguino-scrotal descent is similar in humans and rodents, but the timing differs.
There is evidence of a correlation between sexual orientation and traits that are determined in utero.
Or you could be a man, chromosomally and genitally male, who develops female-typical behaviour and appearance because of more female hormones in the womb. Radovick S. Differentiation into external male genitalia requires the conversion of testosterone to dihydrotestosterone DHT by 5 alpha reductase.
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Nature Med. Organizing action of prenatally administered testosterone propionate on the tissues mediating mating behavior in the female guinea pig. Miller WL.