I think Jennifer's advice is wise. Talking to a therapist, OB, and also a psychiatrist could benefit you greatly. Parenting is difficult; I'm in the middle of raising four kids, and when you make a choice like that you're signing up for a totally different life than if you remain childless. That being said, there are a lot of joys that otherwise go unrealized in life. Your fears sound rational, and they should be taken seriously. What does your husband think?

FYI, Zoloft is in Class C for pregnancy. That being said, the risks of using it during pregnancy are pretty low. Again, that's a conversation for you and your doctors. If you're serious about getting pregnant, an OB and your psychiatrist are the best resources for you.

Good luck with whatever you decide.