You will be asked to join in early pregnancy until your baby is 12 months. You will participate in five research visits and be part of one of the three study groups with other activities. You can receive up to $400 for participation.

You must be:

• At least 18 years old

• Pregnant less than 20 weeks

• Able to understand and respond in English or Spanish

To participate, contact: chimeteam@stanford.edu.