For those couples who wish to start a family, a great deal of planning is done to make sure that conception is successful. Often, it takes several months before success fertilization takes place and the woman gets pregnant. During this period, the couple has just got to keep trying. Many times, the female does not get pregnant despite several attempts, which could dishearten the couple. This is mostly due to negligence and lack of knowledge about the days when fertilization is more likely to occur. Many tools are available in the market these days to make this work easier for couples.