If you are thinking about becoming pregnant, now is a perfect time to make a plan. There are steps you can take to increase your chances of having a healthy, full-term pregnancy and baby – and part of that includes learning about birth defects. Understanding birth defects across the lifespan can help those affected have the information they need to seek proper care. Each year, birth defects affect about 1 in 33 babies born in the United States, according to the U.S. Centers for Disease Control and Prevention (CDC). Mainly developing in the first three months of pregnancy as a baby’s organs form, birth defects present as structural changes and can affect one or more parts of the body (heart, brain, foot, etc.). They can cause problems for a baby’s overall health, how the body develops and functions, and are a leading cause of infant death.