Sometimes pregnancy itself can precipitate depressive symptoms, by the virtues of neurohormonal changes, changes in expected roles and responsibility, limitations in mobility and various other psycho-social and physiological changes. The stress generated by depressive cognition can
affect the psychological development of the fetus, besides affecting its physical health. You should consult a psychiatrist for proper treatments and advice. Now a days safer treatment methods including medicines are available to curb the problems of depression during pregnancies.