Most people know that smoking can cause serious health problems such as cancer, heart disease, and lung disease. But what many people don't realize is that tobacco use can also have a significant impact on fertility, pregnancy, and a baby's development. Whether you have found yourself unexpectedly pregnant, know of someone who is expecting, or are supporting your pregnant partner, it’s important to understand the risks. Once you’ve identified the problems of tobacco use during pregnancy, you are one step closer to making an informed choice for you and your baby’s health.