In this study, researchers sought to understand how the COVID-19 pandemic affected rates of pregnancy complications among pregnant women with commercial health insurance in the United States. The COVID-19 pandemic period was defined as March 2020 to December 2020, and the referent period was defined as March 2019 to December 2019. In the referent and COVID-19 time frames, 324,998 deliveries were identified. Regarding adverse pregnancy outcomes, 10.3% were documented with premature rupture of membranes, 9.3% for gestational diabetes, and 8.5% for gestational diabetes. Compared to the 2019 referent period, pregnancies were associated with higher risk for gestational diabetes gestational hypertension, poor fetal growth, and preeclampsia during the COVID-19 pandemic period.