Pregnant Individuals

The goal of this observational study is to learn if using GLP-1RA medications for weight loss before pregnancy influences gestational weight gain and pregnancy outcomes. The main aims of the study are to: * Compare gestational weight gain between women with preconception GLP-1RA exposure and those without exposure. * Compare obstetrical outcomes between women with preconception GLP-1RA exposure and those without exposure. Researchers will compare pregnant women with a history of GLP-1RA use to pregnant women who have not used a GLP-1RA to compare differences. Participants will be asked to complete questionnaires at multiple timepoints during and after pregnancy that ask questions about medication history, thoughts and feelings around food, etc.

The goal of the ADVANCE (Assay Development and Validation for Pre-Natal and Obstetric Conditions) study is to compare the concordance of results of a novel non-invasive circulating fetal cell (CFC) assay to the results of prenatal invasive diagnostic testing or postnatal genetic and clinical diagnosis of the resulting neonate. This is a prospective study of pregnant individuals.