I don't have much advice... but I know how you feel about just wanting to DO something.
For me lighting a candle that night and being here for the chat feels like it will be enough for me this year.
I hope you find more info and can get something going in your area. Your church sounds like a great place to start this year.
I am sooo proud of women like you who have the deep desire to really DO something about pregnancy loss. I try but, would never have the time to organize something like that.