Two studies being published in the New England Journal of Medicine did not find a link between birth defects and the mothers’ antidepressant use. A total of almost 30,000 infants and their mothers were studied.
http://www.msnbc.msn.com/id/19464132/

For many, the benefit of being healthy outweighs the risk of stopping medication. Untreated depression can cause stress and possible harm to the fetus.