When a person has an autoimmune disorder, immune cells mistakenly attack the body’s own cells. Examples of autoimmune disorders are lupus, rheumatoid arthritis, and Grave’s Disease. Some autoimmune factors, such as antiphospholipid antibodies, may affect fertility or pregnancy. Many IVF clinics test for autoimmune disorders. Treatment may consist of low-dose heparin (an anticoagulant), baby aspirin, or prednisone (a steroid).