"and they hit a pregnant woman, and her fetuses miscarry": Abba Chanin said in the name of R. Eliezer: Why "a pregnant woman"? From "and her fetuses miscarry" it is obvious that she is pregnant! — I might think that if he struck her head or one of her limbs (and she miscarried) he is liable; it is, therefore, written "pregnant." To apprise us that he is not liable unless he strikes the region of her pregnancy.