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At the initial stage of pregnancy, the mother might experience morning sickness, vomiting, increased energy levels and sense of well-being.

Due to breast and uterine enlargement the mother gains weight. Furthermore fetus; amniotic fluid; placenta; increased body fluid; extra storage of proteins, fats and minerals, contribute for the weight gain of mother, which subsequently leads to swayback and lower back pain.

Due to the presence of placental hormones which support fetal development, the mother experiences many physiological changes.

Some profound changes occur with the circulatory system and respiratory system in women during pregnancy.