I went through a "missed abortion" twice and both times it was an awful waiting game. The first time I had a D&C at 12 weeks
when we learned the embryo had stopped growing at 8 weeks
. The second time I started spotting at 6 weeks
and the docs kept getting inconclusive U/S results. At 8 weeks
(still with a full set of pregnancy symptoms) the embryo looked like 5 weeks
with no heartbeat and we finally gave up and did a D&C.