Actually, it depends on the time the dose was given. I have recently read that if the mother accidently takes to much steroids( medically perscribed for achs and pains) then the unborn child could suffer. If the child is male, the male organ could do any number of things from grow to big, to becoming deformed. On the flip side, a female baby could, if given before the 18th week i think, develop a complete male genitilia.
From the story i would guess that the child was originally female. To what degree the parents had a say could be questioned. As perhaps the injections were given without the parents noticing. In my ward, not always is the father present, and the mother never gets a good look at the baby untill it is handed to her. Thus, the doctor could reasonbly come up with an excuse to give the baby isolation for any number of reasons to cover up the mistake.
I truly hope that this scenario is a product of my overactive imagination, but in theory it could happen like this. Scary thoughts either way, i'd raise the child untill the child decided who he/she wanted to be. After all, is not the child the one to live with the choice?