Your body needs significantly more iron while pregnant—about 500-800 mg extra—to make additional blood for your baby. If you start pregnancy with low iron stores (which is quite common), it can affect your baby's development and increase your risk of complications like premature birth and postpartum bleeding. Research suggests that taking daily iron supplements during pregnancy cuts your risk of anemia by about 70% and reduces the chance your baby will be born with low birthweight. Some side effects like nausea or constipation are possible, but they're usually manageable. The key is getting your iron levels checked early in pregnancy and taking supplements consistently if your doctor recommends them. This is one of the most straightforward ways to protect both your health and your baby's start in life.