Mishnayos Sotah Perek 4 Mishnah 3

A woman who was pregnant with the child of another man at the time of her marriage and a woman who was nursing the child of another man at the time of her marriage neither drink the bitter water nor collect payment of their marriage contracts. This is because by rabbinic law they may not marry for twenty-four months after the baby’s birth, and therefore these also constitute prohibited marriages. This is the statement of Rabbi Meir. And the Rabbis say: He can separate from her, and remarry her after the time of twenty-four months has elapsed, and therefore these are considered permitted marriages, and the women can drink the bitter water. A sexually underdeveloped woman who is incapable of bearing children [ailonit], and an elderly woman, and a woman who is incapable of giving birth for other reasons, neither collect payment of their marriage contracts nor drink the bitter water, as marrying a woman who cannot give birth constitutes a violation of the mitzva to be fruitful and multiply. Rabbi Elazar says: He can marry another woman and procreate through her; therefore, these are considered permitted marriages, and women in these categories can drink the bitter water. And all other women either drink the bitter water or do not collect payment of their marriage contracts.

מְעֻבֶּרֶת חֲבֵרוֹ וּמֵינֶקֶת חֲבֵרוֹ, לֹא שׁוֹתוֹת וְלֹא נוֹטְלוֹת כְּתֻבָּה, דִּבְרֵי רַבִּי מֵאִיר. וַחֲכָמִים אוֹמְרִים, יָכוֹל הוּא לְהַפְרִישָׁהּ וּלְהַחֲזִירָהּ לְאַחַר זְמַן. אַיְלוֹנִית וּזְקֵנָה וְשֶׁאֵינָהּ רְאוּיָה לֵילֵד, לֹא שׁוֹתוֹת וְלֹא נוֹטְלוֹת כְּתֻבָּה. רַבִּי אֱלִיעֶזֶר אוֹמֵר, יָכוֹל הוּא לִשָּׂא אִשָּׁה אַחֶרֶת וְלִפְרוֹת וְלִרְבּוֹת הֵימֶנָּה. וּשְׁאָר כָּל הַנָּשִׁים, אוֹ שׁוֹתוֹת אוֹ לֹא נוֹטְלוֹת כְּתֻבָּה: