Pregnancy is an significant stage of a womanÂ’s life, and has the possible to effect the growing fetus and the mother. It has been recommended that pregnancy weight gain within the Institute of Medicine suggested ranges are associated with better pregnancy consequence than are weight gains outside these ranges. Maternal weight gain is depending on socio-economic status, biologic factors and cultural behaviors. High-impact journals are those considered to be highly influential in their respective fields. The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.