סימן קנז סעיף ב
אִם נִדְחוּ הַנִּשׂוּאִין מֵחֲמַת אֵיזוֹ סִבָּה, וְאַחַר כָּךְ שׁוּב נִתְפַּשְּׁרוּ לַעֲשׂוֹת הַנִּשׂוּאִין, אַף עַל פִּי שֶסָּפְרָה שִׁבְעָה נְקִיִים בָּרִאשׁוֹנָה, מִכָּל מָקוֹם צְרִיכָה לִסְפֹּר מֵחָדָשׁ, כֵּיוָן שֶנּוֹלַד לָהּ חִמּוּד חָדָשׁ. וַאֲפִלּוּ בָּדְקָה אֶת עַצְמָהּ בְּכָל הַיָמִים שֶׁבֵּינְתַיִם, לָא מַהֲנֵי לָהּ. וְאִם לֹא הָיָה דִחוּי גָמּוּר, אֶלָּא שֶׁלֹּא יָכְלוּ לְהִשְׁתַּוּוֹת בְּעֵסֶק הַנְּדֻנְיָא וְכַדּוֹמֶה, וּמֵחֲמַת זֶה נִתְעַכְּבוּ עַד שֶׁנִּתְפַּשְׁרוּ, אוֹ שֶׁמֵּרְצוֹנָם דָּחוּ הַנִּשׂוּאִין מִיּוֹם שֶׁקְּבָעוּם וְהִגְבִּלוּ יוֹם אַחֵר, יַעֲשׂוּ שְׁאֵלַת חָכָם, אִם שִׁבְעָה נְקִיִים הָרִאשׁוֹנִים מַהֲנֵי לָהּ. אִם נִתְקוֹטְטוּ בִּשְׁעַת הַנִּשׂוּאִין, וְנִכְנַס חָתָן אַחֵר תַּחַת הָרִאשׁוֹן, פְּשִׁיטָא דְּלָא מַהֲנֵי לָהּ שִׁבְעָה נְקִיִים שֶׁסָּפְרָה עַל דַּעַת חָתָן אַחֵר, אֶלָּא אֲפִלּוּ אִם לְאַחַר שֶׁנִּתְרַצּוּ לְחָתָן אַחֵר, שׁוּב נִתְפַּיֵּס הָרִאשׁוֹן, לָא מַהֲנֵי לָה שִׁבְעָה נְקִיִים הָרִאשׁוֹנִים, כֵּיוָן שֶהִסִּחָה דַעְתָּהּ מִמֶּנוּ, אֶלָּא צְרִיכָה לִסְפֹּר מֵחָדָשׁ.
If the wedding was cancelled2If the groom cancelled but the bride did not give up the idea and he was convinced to go through with it, she does not need to count anew (Taz). If the bride made up her mind not to marry him, and then changed her mind, she must count anew (Aruch Hashulchan). The Makor Chaim say she does not need to. for some reason, and afterward they agreed to hold the wedding, even though she had already counted seven clean days the first time, nevertheless she must count them anew, because a new desire has been created in her. Even if she has examined herself daily during the interval, it is of no avail. If it was not a definite cancellation, but they were unable to agree about the amount of the dowry, or the like, and because of this the wedding was delayed until they came to terms, or if they postponed the wedding by mutual consent, from the original day to a different day, they should consult a poseik to determine if the first clean days are of avail. If they quarreled at the wedding, and another groom took the place of the first, it is self evident that there is no validity to the seven clean days that she counted for the first bridegroom. But even if after consenting to marry the second groom, she became reconciled with the first one, there is no validity to the first seven clean days, because her thoughts were diverted from him. She must count anew, seven clean days.
תנא דבי אליהו כל השונה הלכות בכל יום מובטח לו שהוא בן העולם הבא שנאמר הליכות עולם לו אל תקרי הליכות אלא הלכות (נדה ע"ג.)