So I jut found out I am pregnant with unidentical twins today. I am only 7 weeks along. Hey both have their own sack and a heartbeat. But as I have done some research I keep seeing things about vanishing twin syndrome!! Now I'm terrified! What are the chances of this happening?? I don't have another scan until 12 weeks so have another 5 weeks to go until I see them again. if I have my scan and one is gone I'll be devastated!!