It could be done without overt gore and still say it very well. A montage of sonograms (including a display showing one in motion if possible), a scene showing the “doctor” with sinister looking tools and a “DON’T” thought balloon out of the baby’s head, some scriptures, that sort of thing. Gore is good when it’s possible to show it, but there’s no need to make gore the hill to die on.
You know, I was thinking along the same lines, my idea was to put a picture of an unborn baby with the instruments used for abortion superimposed over the baby’s picture. The instruments of abortion are scary enough without the actual gore.