Reasons Why Pregnant Women Need Calcium Supplements Pregnant women need to consume more calcium during pregnancy to support the growth and health of their fetus and their own bones. Pregnant women need approximately 1,000 milligrams of calcium per day to maintain bone growth and repair. If pregnant women do not get enough calcium, it will affect the fetal bone development. At the same time, pregnant women may also suffer from anemia, elevated blood pressure and other problems. Therefore, pregnant women need to increase their calcium intake during pregnancy. The fastest way to supplement calcium for pregnant women 1. Yogurt Yogurt is a