Tip for Christian mama

Athena • Mom of three. Expecting number four in August. Excited and nervous.
Hi ladies!
I'm just looking for some good tips in helping raise an interfaith family. I'm non-denominational, spiritual Christian. 
My boyfriend is Wiccan and I have some limited knowledge of his spirituality. 
We discussed a bit about how we would raise our children and he now knows I'm very against forcing religion on anyone - especially my children. 
Do you have any tips that can help me be more knowledgable about his spirituality/faith? 
Thanks so much and blessed be (I hope I said that right!)