So sorry to hear this I've just experienced a miscarriage myself and it's HARD. It doesn't just hurt, it's emotionally painful. I think my feelings hurt far more than my contractions.
Anyway, I just wanted to say that there's people out there who know how you're feeling and are feeling it at exactly the same time. The main thing is to feel your feelings. Don't push them down or let other people tell you what you should feel or how you should deal with it.
I had a big cry the day that I suspected we'd lost our bub. It was the best thing I could have done because it let me just get all the anger, the upset and the misery. That won't always work for everyone but it helped me a LOT.