Given that it would result in a completely different person, it would no longer be the Shepard I built.
Not only would that COMPLETELY miss the entire point of making Shepard that way, but she would just be another little Miranda.
Not sure why people think this sort of question is interesting (and you aren’t the first to ask). In any event, it’s not something I thought about nor do I intend to, as it invalidates the point of what I’m writing about.
I’m very tired of reading about plain, wholesome, normal mentally well adjusted white-male-hetro Shepard, or his female twin alter ego, Lesbian-Female-Shepard.
Purge the alien. Kill the heretic. Suffer not the witch to live.