A recent retrospective review of close to 50,000 women, divided into 3 groups; never exposed to ssri’s and no psychiatric problem, having a psychiatric diagnosis (98% an affective disorder) but not taking an ssri, and having a psychiatric disorder and treating with an ssri..showed that treatment of the psychiatric disorder had a protective effect. The was significant as there was a lower risk of preterm birth and c sections. There however was a higher risk of neonatal problems as reported in prior studies.