dee Stop being so bloody harsh on yourself - unless you took part in every conceivable risky behaviour with wanton abandon then it's pretty safe to say you are not directly to blame for what is happening.
Ok, let me put it this way - would you suggest any of us here, having suffered a loss (or multiple losses) and complications afterwards, have fucked up bodies? No, of course you wouldn't - so STOP DOING IT TO YOURSELF!
I bet you've advised people going through shit times to be kind to themselves, to give themselves a break... why not extend that kindness to your own situation?
Yup, it's a shit, bewildering time when you have a miscarriage. Bereft tears one minute, raging anger at everything the next, periods of nothing when The Numbness settles over you for a while... always, always the 'why'?
I'm so so sorry for your loss; I wish it could have been a simpler end, given that it has ended... but you're wrong to blame yourself.
I'm only three weeks today from a medically managed mmc at 16+ weeks. My fucked up body decided to try and kill me afterwards by hemorrhaging (hello, emergency erpc), but you know what? I've made my peace with (my body), even though yesterday I've had to start grotty antibiotics that I can't go in the sun with (and it's a glorious weekend ahead!) as I seem to have developed a post op infection. Maybe it was a brush with death that hastened my forgiveness, I don't know, but I do know that none of us here that wanted and loved out lost ones, none of us should be blaming ourselves. Including you!
Wishing you will feel better soon.