כִּ֥י בַשָּׂדֶ֖ה מְצָאָ֑הּ צָעֲקָ֗ה הנער [הַֽנַּעֲרָה֙] הַמְאֹ֣רָשָׂ֔ה וְאֵ֥ין מוֹשִׁ֖יעַ לָֽהּ׃ (ס)
Porque él la halló en el campo: dió voces la moza desposada, y no hubo quien la valiese.
Tze'enah Ure'enah
“There was no one to save her” [22:27]. When nobody wants to help a woman who is being raped, then she is innocent. From here we learn that one should help a Jew in any way one can. When one sees a Jew running who wants to kill another Jew, then one is allowed to kill the one who wants to commit the murder. From here our sages learned that a woman who is having a difficult childbirth and she cannot give birth to the child and her life is in danger, then it is permitted to kill the child, expecting that the mother will remain alive. One is allowed to give the mother something to drink so that the child will die and come out of the mother. One may also make a smoke for the woman so that the child would die and leave the mother. However, in any event when the head of the child and the majority of the body is out of the mother, then they should not kill the child, since the child does not desire to kill, but it also wants to come into the world. Therefore, the child is not called a murderer.17Bahya, Deuteronomy, 22:26.
Sforno
צעקת הנערה, we give her the benefit of the doubt, assuming she had cried for help.