Instruct: Classify the given review into positive or negative sentiment.
Query: How to prevent miscarriage: lie down and take progesterone

With one ectopic pregnancy and two miscarriages, I am looking forward to a healthy pregnancy next time. But it won't be thanks to this book. The title is misleading. The main advise is: when you feel or think something is wrong: see your gynecologist, go to bed and try progesterone. After reading te book I can only conclude: there are no ways of preventing a miscarriage. And his so called 97.5% succes rate for bringing healthy babies to term in his high risk pregnancy, is an absolute mysterie to me.