If the gestational sac has ceased to develop, the progesterone may bleed, but the bleeding is related to the decline in hormone levels in the body, and the progesterone is generally not related. After pregnancy, the gestational sac has stopped developing, playing progesterone may also vaginal bleeding, bleeding may be the body estrogen level decline, the body of the embryo immune rejection effect, the mother and the embryo between the blood vessel formation thrombus occurs disassociation caused by the embryo to be discharged out of the body of the signals, on behalf of the inevitable miscarriage occurs. The gestational sac stop playing progesterone has no role in preserving the fetus, the gestational sac has stopped developing, the mother’s body will produce a series of changes to help the death of the gestational sac to be expelled from the body, play or not to play progesterone is to bleed. The first thing you need to do is to consult a hospital for timely treatment of the pregnancy sacs.