This study aims to describe the impact of some of the most common autoimmune diseases, such as multiple sclerosis (MS) and neuromyelitis optica spectrum disorders (NMOSD), myasthenia gravis (MG), chronic inflammatory bowel disease (IBD), type 1 diabetes (T1D), autoimmune thyroid disease, rheumatoid arthritis (RA), systemic lupus erythematosus (SLE), psoriasis, vasculitis, and antiphospholipid syndrome (APS), on pregnancy in women. This review investigates the risk to the offspring of the women; that is, whether the mother's disease may affect fertility or disturb fetal development.