Yes, it is exactly why she's risking death by sepsis.
But the stupidest part of this - because being willing to leave your eleven children motherless can't ever be the top worst thing a fundie mom does - is that there is no fetus. The doctor confirmed that a blighted ovum is what implanted, not a fertilized egg. A d&c for a blighted ovum would in no way be considered an abortion by anyone - there is no "there" there.
But Karissa needs to ignore all medical advice as usual, and is thrilled to be risking sepsis for YAHWAH... not that he asked her to do any of this foolishness. This is all Karissa being stupid and selfish.