This case presentation describes a 42-year-old pregnant woman, 28 weeks gestation, who presented with shortness of breath. She reported dyspnea on exertion that had progressively worsened since her first trimester. Physical exam, labs, ECG, CXR, echo, and MRI were performed. Echo showed a moderate pericardial effusion. Pericardiocentesis was performed and fluid analysis found no organisms. A small residual effusion remained on follow up echo. The patient was diagnosed with a pericardial effusion likely related to her Hodgkin's lymphoma.