This cooperative agreement with March of Dimes is funded by the Centers for Disease Control and Prevention’s (CDC’s) National Center on Birth Defects and Developmental Disabilities (NCBDDD) to conduct formative research to understand clinician's and pregnant women's understanding of the use of over-the-counter medications early in pregnancy. The project builds on previous contract work RTI International has done for NCBDDD, and a successful collaboration RTI had with March of Dimes via a national consumer workgroup via RTI’s previous CDC NCBDDD work.