Hello Henci,
I have enjoyed reading both Obstetric Myths and the Thinking Woman's Guide. However, since I lost my first (and so far only) child to a miscarriage, I would really appreciate a thorough treatment on the subject. I didn't know much about it before, I was at the mercy of an unknown Dr. immediately after (I miscarried 500 miles from my midwife), and still haven't found much information. I know it may not fall under the category of "birth," but since nearly 20% of pregnancies end in miscarriage, it seems like it should fall under the category of pregnancy complications. I just felt through my experience that I was fed a boat-load of obstetric myths that cost me $1,000 for a completed miscarriage (I only went to the Dr. to get Rhogam). And I didn't even get a D&C!
Questionable statement #1: Your HCG is still really high, so I want to get an ultrasound to make sure there isn't any retained tissue/molar pregnancy/viable pregnancy. At 11½ weeks pregnant, my HCG was 10794 mIU/mL almost exactly 12 hours after the completed miscarriage (defined by me based on the most excruciating cramps, heavy bleeding, and tissue passage that subsided after approximately 2 hours--I knew it was over at that time). My subsequent research has indicated that my HCG was on the low end for that stage in pregnancy. More thorough understanding of how HCGs in general work, and particularly during and after miscarriages, would be helpful.
Questionable statement #2: Either remain completely abstinent for 3 months or use a condom EVERY time because you should not get pregnant for 3 months. While I have found this advice repeated on many pregnancy sites ad nauseum, I can't find a basis for this. The few abstracts I've found seem to be conflicting about whether or not it is advisable to wait or just get pregnant as soon as your body allows.
Any other information about what is "normal" for a miscarriage and what isn't, and what medical interventions are necessary and which aren't would be helpful. The principle for normal childbirth that being informed ahead of time is essential to getting the birth you want is just as true, if not more so, with a miscarriage. You don't expect it to happen, and when you are sitting in the Dr. office numb with grief, exhaustion, and physical pain, you cannot make good decisions and sometimes regret your choices for months to come.
I realize this may not be your area of expertise, but you are so thorough in your research that I would love to see your comments on this topic.
Sincerely, Melanie