There are only few case reports in the literature documenting outcome of pregnancy in patients with DM in contrast with those of other connective tissue diseases especially when dermatomyositis is revealed during pregnancy , most of the publications reported a poor prognosis for both the mother and the fetus , yet, in our case we confirmed the results of the rare recent cases that have tended to show a good outcome, after the treatment with glucocorticoid and immunosuppressant therapy.