I'm not sure if this will help but I donlt look at a miscarriage as that baby is lost forever, I believe it is a souls trying to get through and it is a difficuly journey and it will be the same souls that comes back. we named our little bubble ziggy when we were ttc after a zygote the fertilised egg stage! We lost ziggy at12w1d on 6th Feb, we are now trying to bring ziggy back and making the path as smooth as possible, I am taking my prenatals, doing soy iso's, losing weight, exercising and generally doing as much as humanly possible to bring back his little soul.
That's just how I see it and may help you if you think about it this way. I know people feel guilty and by acknowledging that the baby isnlt gone and needs your help to come back will ease that burden.
Just a thought but it's is also what I believe.