Hello, Thanks for sharing your health concern with us. I have gone through your query and would like to offer some information. If the fetal viability was noted at the time of initiation of treatment, your doctor would try to maintain the pregnancy by all means. Ethamsylate is contraindicated in pregnancy. The role of progesterone in a case of threatened abortion not dependent on hormone insufficiency is not proved. Human chorionic gonadotropin is useful. Though fetal viability may have been detected, fetal anomalies may have caused the arrest of pregnancy. An examination of the products only can determine the cause. There can be several causes for a first trimester abortion including anomalies, infections etc. Hope this helps.