St John's Wart

I currently take st johns wart as a treatment for my SADD. it works very well because my depression from SADD is mild and only during winter months. When I lived in Texas it wasn't an issue but since moving to the pacific north west, the excessive rain got to me. St John's Wart helps a lot. 
Now I'm TTC a and have been doing some research and get conflicting reports about its effects on fertility and pregnancy and baby. Does anyone have any knowledge about it? I'm looking for things you may have been told by your dr - not just stuff you "heard from a friend" or read online. I've already done a lot of the online readig. 
I'm also having to weigh the effects of the herb vs the effects of fighting SADD and depression for the next many many months.