>>65472118She does not menstruate and has less than 10 times in her life since she's on a shit ton of medication that could be screwing with it, and also she's been starving herself since she was prepubescent.
Whether this is something that could be fixed if she was a normal healthy weight and not 87 fucking pounds AFTER gaining more than 20 or is permanent damage, who knows.
But even if you did magically knock her up the biggest problem you're going to face is you would have to get her off the 5 drugs she takes to function, two of which are maxxed out antipsychotics, so she will probably claw the baby out of her womb with her bare hands since the last time she was off her meds was over a decade ago and she immediately tried to kill her family and smeared her blood all over the walls.