Additional Study Information: You are invited to participate in a research study to understand how environmental exposures during pregnancy influence the health and development of children. This study will begin at pregnancy and follow your child through age 11. A trained research worker will work with you and your child, administering questionnaires to you and developmental evaluations to your child. Blood samples will be collected from you and your child. The study will help you to know if there may be health problems with your child, like difficulties in breathing, lead poisoning, developmental delays, and being overweight. If needed, we will help you to identify special care that can help your child grow up healthier. Compensation for this study ranges from $25 to $200 for various visits and questionnaires starting during your third trimester of pregnancy. Some visits may be conducted remotely, and others in person. We will provide round-trip transportation by cab. (This is a minimal-risk, non-interventional and non-invasive study)