Coming back to this a couple days later after having been reminded by folks of some textual details, post 12 above (https://hachyderm.io/@dalias/113708493850933170) is basically what comes naturally if you only read Matthew, where the only borderline-supernatural/dream message is to Joseph not Mary, and Joseph's character is praised for how he first plans to, and ultimately, handles her pregnancy.
It's the account from Mary's side in Luke that really seems to inspire rape-theological interpretation.
18/N