maybe she can consult with another T or ED T. usually, i've heard people with eating disorders do well when they go to an ED clinic. are there any outpatient clinics for this? can you ask your T about that?

it may be that you can't get pregnant because you are underweight. it is pretty well-known in the medical community that being underweight can prevent you from conceiving. if there isn't another reason why you can't conceive then working on your ED at a clinic, even inpatient, could help you get pregnant. maybe you can use that as motivation to work on your ED. you could tell yourself when you don't feel like eating that you are doing this to become healthy enough to become a mom. that might be a good goal.