From the bleachers, all I can say as a layman reading the local/state news is that a lot of this is political. It seems like every news story has a pregnant woman or an OBGYN going off on the right wing extremists killing mothers. They all talk about women "sneaking out of Idaho in the dead of night" to drive to Portland for abortions so they don't go to jail.
While most abortions are illegal in Idaho now, there is nothing in the law that prevents a woman from taking a 30 minute drive across the border to Ontario, OR or Spokane, WA for an abortion. The only time it's illegal is when it's minors being taken across the border without parental consent.