For a prospective parent who did not intend to have abortion, loss of a fetus is a loss of a child.
If we do have an irrational system where the result of the action is judged rather then the action itself or even intent, the harm done to a prospective parent as a result of a loss of a fetus is quite real and should be accounted for.
It could probably have been done more reasonably as rights of pregnant women then rights of the fetuses though.
Wether this will be used as a pretext to interfere into our right to choose, we will see.