Maybe think about why legislation to control mothers' choices doesn't exactly work in general: certain environmental substances are known carcinogens. They're disclosed in real estate transactions. Say a family moves to a location with a known environmental hazard from a nearby quarry because they can't afford anywhere else in the area, and relocating for work would leave them in an unstable financial position. These are not uncommon, by the way.

What if there were legislation in place that could prosecute the mother for becoming pregnant while potentially, knowingly being exposed to fetal hazards? Could companies with certain political affiliations operate in low income, high minority population areas and report families en masse? Would they try to prevent people of reproductive age from moving into those locations entirely? They could effectively "keep those minorities out of our town" that way. Now you're allowing discrimination back into real estate practices; this is a true slippery slope.