Article Correctness Is Author's Responsibility: Pregnancy Can Delay Onset of Multiple Sclerosis Symptoms by Three Years September 14, 2020 Author: Neuroscience News Category: autoimmune diseasesThe article below may contain offensive and/or incorrect content. Women who have been pregnant were diagnosed with their first multiple sclerosis symptoms, on average, 3.3 years later than women with MS who had never become pregnant.