So I had a positive pregnancy test and was sent for an early pregnancy scan on the 15thJuly the pregnancy sac was mesauring at 8mm but no baby so they asked me to come back on 28th but still no baby but the pregnancy sac was mesauring at 17mm they said a possible miscarriage so I have to go back on the 4th and I'm so scared, has anyone had this and had a good outcome?