OBJECTIVE As the problem of obesity continues to grow, more patients are choosing to undergo bariatric surgery to lose weight and treat comorbidities, such as diabetes. Of the more than 200,000 procedures performed each year, 80% are in women, many of reproductive age. Taking care of a pregnant woman who has undergone bariatric surgery requires understanding of the risks, the need for additional surveillance, and the limitations of our knowledge about how bariatric surgery affects pregnancy. OBJECTIVE The aims of this study were to review the current literature on bariatric surgery and pregnancy and summarize the important evidence to help the obstetrician care for a pregnant woman after bariatric surgery. METHODS Evidence for this review was acquired using PubMed. CONCLUSIONS Pregnancy after bariatric surgery is safe and may be associated with improved pregnancy outcomes; however, more research is needed to better understand how to manage pregnant women with a history of bariatric surgery. CONCLUSIONS Obstetricians will increasingly be caring for women who have undergone bariatric surgery and subsequently become pregnant.