WHY IT MATTERS: If you are pregnant or planning to become pregnant and currently use cannabis, this research underscores why having an honest, judgment-free conversation with your physician about timing, risks, and alternatives is essential for both your care and your baby’s long-term neurodevelopmental health. CLINICAL OVERVIEW: Emerging research is exploring how prenatal cannabis exposure may alter genetic markers in the placenta, particularly in pregnancies associated with low birth weight, and whether those placental changes could serve as early indicators of neurodevelopmental risk including schizophrenia. This builds on what we already know clinically about the endocannabinoid system’s critical role in fetal brain development and placental function.