Depression & TTC

I have a history of depression but have been doing fine without meds or therapy the past several years. Of course now after a year TTC, the depression is suddenly overwhelming.  I don't want to go back on meds while TTC since I would have to stop when pregnant, which hooooopefully won't be much longer...but really who knows.. I know depression doesn't help TTC, and failing at TTC isn't helping my depression, so I'm stuck in a vicious cycle. Does anyone have experience with this or have suggestions on how to handle it?