Let's start by getting something very, very clear:
A miscarriage is when the baby dies before birth of natural causes, or from an accidental injury. When you kill the baby deliberately, it's an induced abortion, whether you're scraping it out, sucking it out, pulling it out with forceps, or using herbs or chemicals to starve it, poison it, or expel it. There is no more any such thing as a "self-induced miscarriage" than there is such a thing as any kind of "induced" natural death. The fact that you're inducing it means that it's not natural, it's not accidental, it's deliberate.
Calling any kind of induced abortion a "miscarriage" is a sign either of ignorance or of denial. And it is a slap in the face to women who have lost children to miscarriage.
You'd not tolerate for a moment a mother who put arsenic in her kid's oatmeal saying "My child got sick and died." You'd not tolerate for a moment a mother who pulled out a gun and blew her child's brains out saying "My child died in an accident." We need to stop letting women get away with deliberately ingesting things that they know will kill their babies and trying to pass it off as some sort of miscarriage.
If you do something to make your unborn baby die, that's not a miscarriage. Lay off trying to pretend it is.
Now that I've got that off my chest....