I went to the ER this morning (not gonna get into reasons) and had an abdominal ultrasound done with a really poor quality machine. Before I mentioned anything my dr asked if I have a history of twins, which my fiancé is a twin. She mentioned she sees one very healthy baby but also sees another sac. She can only see about 30% of the sac because it seems to be behind the other. I have already scheduled an appointment with my ob but I’m trying to think of any other logical reasons I might have two sacs other than twins??? Anyone have an idea?