Prescribing a medication for pregnant women is a complex process. Prescribing exercise for pregnant women has to be just as scientific and precise. The type, intensity, frequency, and duration of a “dose” of exercise are all critical. One person’s healthy, vigorous workout could be hazardous to another. These dangers may be greater in pregnant women because they are more likely to have strains and other serious side effects for the would-be mother. However, if exercise is implemented and carried out in a normal, average range, exercise will not have an effect on the overall condition of the pregnancy and especially on labor or delivery.