Yes, everyone is unique to some degree. For instance my wife’s uterus is slightly tilted. It rarely matters, but every once in a while it causes discomfort. Knowing this, doctors don’t need to over react to additional and unexpected discomfort during pregnancy. But this isn’t relevant most of the time, so hospitals focus on factors that help quickly and efficiently diagnose the issue. Age and sex are probably the biggest of these factors, along with medical history. Gender identity is usually not important, though in some cases it could help identify someone who is intersex. But these cases are rare enough not to warrant their own check box, much like a tilted uterus.