Patterns of variation of state and trait anxiety during pregnancy and after delivery were studied prospectively in relation to some obstetrical and neonatal disturbances. Specific pregnancy anxiety, social support, and coping style were also evaluated. State anxiety in the 3rd month was significantly higher among women with obstetric complications and oscillated during the course of pregnancy, with significantly higher levels in the 3rd and 9th months. No such variations were found in the women with uncomplicated pregnancies. None of the other psychosocial variables examined were related to complications.