Laxative that can be safe during pregnancy-

Isabgol is the best natural laxative which can be used safely in pregnancy. During the pregnancy, hormone progesteron is responsible for constipation which causes relaxation of all smooth muscles of body including intestine. So the movement of food along the intestine slows down that allows the water in the food to be absorbed almost totally from the intestine, so that the end product reach the rectum is less bulky, hard and difficult to expel.

Isabgol is a bulk forming laxative so more water should be consumed with it.