I have also been diagnosed with depression ever since I was 18 years old. With my pregnancy, my husband actually told me to get off all antidepressants for the health of the baby. But since I am so non-functional during such drug-free period, I actually stopped working and applied for social security disability insurance for short-term during my pregnancy to ensure I would have a healthy baby. My arguments with him now are often associated with treating bacterial or parasitic infection during pregnancy. Again it's benefits vs. risks. We as pharmacists often say, if benefits outweigh risks, drugs should be used. For example, if a person is ill with hypertension, he can die from complications like CHF, hemorrhagic stroke or kidney failure in a short time due to constant blood pressure, thus benefits outweigh risks (risks might be unpleasant or extremely low fatality rate from side effects from drugs). Thus in your case, consulting with a perinatologist might be advisable. Also, try to choose an antidepressant that's in pregnancy category B. But even with that said, I've heard stories of Lovenox in this forum causing complications in infants though it's currently listed in pregnancy category B. Thus you understand why even healthcare professionals often differ in their opinions on certain treatments. Try to understand the rationale, the pathophysiology, and weigh the pros and cons of treatment options, and make informed decisions yourself just as healthcare professionals do.

I am sure you are quite informed of the options of antidepressants, but in case you aren't, here's the website to a long list of antidepressants
http://en.wikipedia.org/wiki/List_of_antidepressants. Check up their individual pregnancy category on google by typing in for example "pregnancy category of Zoloft", etc. Hope that helps.