Our study says about the changes during peak fertility of woman. Actually it is little more difficult to say the exact desires and feelings during this time because no one can properly explain their demands or they can not express their feelings to anyone. But our study tries to explain their desires by asking then different types of questions related to their attitudes, their choices, their wishes, their likings and disliking etc. The results have suggested that mainly they become more intrasexually competitive or try to compete with other girls to be better. We have studied nearly 500 females and according to their voting preferences of different questions it can be said that most of them try to be better looking. Actually little percentage of them always negatively answered. We could not understand that whether they said their own words or tried to hide their feelings to us. If they said truly then why they have no feelings in this peak fertility time? Our study also says that they becomes more sexually desired or aroused at this time and the scientific reason is that they remains at high risk of conception and due to natural condition.