How long after stopping paroxetine can i get pregnant?

Anytime: Anytime, as its risks in pregnancy do not occur until after the first 6+weeks of pregnancy. But ensure your anxiety +/- depression is treated adequately (another med, if needed), as data is clear that women who stop meds before/during pregnancy have between 50-80% relapse rate in pregnancy. Relapse is associated with fetal brain development. Careful treatment is safer for the fetus than illness.