Wellbutrin while TTC?

So I spoke with my therapist yesterday, who put me on the antidepressants Wellbutrin, they said once I conceive we will pull me off or out weigh the risk. I do struggle with bipolar, so I agreed that I'd like be on until I go get a positive. 
Does anyone else take antidepressants or this particular brand? I plan on speaking with my OB to make sure it should be fine. I was off it for several months while I've been TTC (4 months) but my depression has just gotten bad again, and I know I need help. 
It is class C category, which shows not even evidence.