The woman you describe is heroic, in my opinion. In the situation she was in, someone was going to die - her, or her baby. She chose that it be her. As Christ said, there is no greater love.
Then you and I violently disagree on the definition of heroism, priorities, and Motherly Love.
It is unforgivable to me. Even her Catholic family resent her for what her sanctimonious, and frankly political, choice did to them all - including 3 very small children who loved and needed their mommy very much. Now the child she had is looked at as the fault - it aint pretty.
"No greater love" should have extended to her 3 living babies more so than a single potential child.