Thanks for the honesty. Appreciate your answer.
Probably you don't have a case. Early miscarriage can't be prevented; the nurse might have been tactless but she was telling you the truth. There is nothing a doctor can do in the ER, the clinic, or the hospital, to make an embryo stay that is fading. The docs in the ER did not do anything contrary to best medical practices. And if you had a sonogram and everything looked fine, no blame attaches to them. The secretary not rushing was a shame, and the nurse telling you in a not-tactful way that early miscarriage can't be prevented is a shame. Unfortunately 2 out of 5 pregnancies end in early miscarriage, but that is because something did not link right when the sperm met the egg, not because someone didn't fix things in the ER or at the doctor's. The sperm meets the egg, things hook up but not all things exactly right, the embryo develops until that thing is needed, it's not there, the embryo fades. It's very sad, but that is the commonest story. No amount of lying in bed and drinking liquids or seeing doctors will stop a miscarriage that happens for the baby's reasons. Very rarely, bedrest will help if someone is having uterine contractions for a different reason, but if an embryo is done developing, it goes. You can hang by your toes from a clothesline and it will still be done.
I am sorry for your loss. Miscarriage should happen to nobody.