Introduction: The rise in heavy episodic drinking among young women is leading to a shift in pregnancy-related risks. Nine years after the introduction of warning labels on alcoholic beverage bottles and various prevention campaigns, it was important to reassess the knowledge and opinions of pregnant women. Method: A qualitative approach analyzed discussions among 40 pregnant women on seven online forums between February 2014 and July 2015. Results: These women’s knowledge regarding the significant risks associated with alcohol consumption during pregnancy appears to have improved markedly compared to similar surveys conducted in 2008 and 2010. Their primary concern relates to experiences of heavy one-time drinking before knowing they were pregnant. In recent years, a shift in trust appears to have occurred among these women, from mothers to gynecologists as a trusted source of information—a trend linked to the emergence of new drinking patterns among young women. Conclusion: In the absence of prevention campaigns on the potential consequences of heavy episodic drinking early in pregnancy for the unborn child, women manage the risk based on their knowledge, beliefs, and perceived norms.