Generally speaking, the restrictions observed during the three-week period of Ben Ha'mesarim – from Shiba Asar Be'Tammuz through Tisha B'Ab – apply equally to both and women. The question was asked regarding an unmarried girl who would like to take a haircut before going on a date, or an engaged girl who wishes to take a haircut before spending time with her fiancé. Ashkenazic practice is to refrain from haircutting through the Three Weeks, and Sephardic practice is to refrain from doing so from Shabbat Hazon (the Shabbat immediately preceding Tisha B'Ab). Is there room to permit a girl to take a haircut during the Three Weeks or the Nine Days if she finds this necessary for purposes of courtship, or for her fiancé? When it comes to a female mourner, the Shulhan Aruch (Y.D. 390:5) rules that a woman in mourning for an immediate family member may take a haircut already after the seven-day Shiba period, whereas the Rama, whose rulings are followed by Ashkenazim, forbids haircutting even for women until after the thirty-day Sheloshim period. Accordingly, Hacham Ovadia Yosef ruled that a Sephardic girl who wishes to cut her hair may do so, even after Shabbat Hazon, since the restrictions of Ben Ha'mesarim are treated more leniently than the laws of mourning. Moreover, it seems clear from Hacham Ovadia's rulings that any Sephardic woman who feels the need to cut her hair, for any reason, may do so, even after Shabbat Hazon. An example would be a woman who needs to immerse in a Mikveh and wishes to cut her hair to make the preparations for her immersion easier. As for Ashkenazic girls, Hacham Ovadia ruled that they may, if necessary, cut their hair until Shabbat Hazon. Although Ashkenazic practice forbids a female mourner from haircutting during Sheloshim, the laws of the Three Weeks are observed only by force of custom, and not as strict Halacha, and so there is greater room for leniency. After Shabbat Hazon, however, an Ashkenazic girl should not take a haircut. Hacham Ovadia showed that this is the position also of Rav Moshe Feinstein (1895-1986) and Rav Shlomo Zalman Auerbach (1910-1995). Summary: Ashkenazim refrain from haircutting during the three weeks from Shiba Asar Be'Tammuz through Tisha B'Ab. An Ashkenazic girl who wishes to cut her hair for a date, or an engaged Ashkenazic girl who wishes to take a haircut so she looks good for her fiancé, may do so until Shabbat Hazon (the Shabbat preceding Tisha B'Ab). Sepharadim refrain from haircutting from Shabbat Hazon through Tisha B'Ab, but a Sephardic woman who feels a need to take a haircut for any reason during this week may do so.