I was taking Lexapro for anxiety and loved it. But, like you, I was concerned about its effect on pregnancy (I'm not yet pregnant but am trying) so I stopped. Wellbutrin is rated as safe for pregnancy, as a class B drug (Lexapro, Paxil are both class C drugs, I believe. Only Tylenol is class A. The lower the class, the more risk with pregnancy the drug is). I didn't particularly care for Wellbutrin nor did I feel it helped me, so right now I take nothing and am trying to manage my stress using other methods, such as yoga and meditation.

(ps - to respond to something Soidonhia said, DocJohn doesn't answer drug questions, but psisci does)