How long is it safe to be constipated for during pregnancy?

Prevent Constipation: Constipation during Pregnancy is a common problem due to several reasons including the hormone progesterone which slows the movements of food,Iron Therapy and later in pregnancy as uterus presses on the the rectum. There is no number as to safety to the fetus but constipation should be prevented by high fiber diet.plenty of fluids at least 6to8glasses of water,fiber supplements and stool softners