Exodus 21:22-23
If men strive, and hurt a woman with child, so that her fruit depart from her, and yet no mischief follow: he shall be surely punished, according as the woman's husband will lay upon him; and he shall pay as the judges determine. And if any mischief follow, then thou shalt give life for life.
If a man injures a woman and causes her baby to be born early and die, he is to be executed under Mosaic Law.