Just had my early viability scan at 6 weeks. They could see a gestational sac measuring over 12mm with potentially the start of a yolk sac but this can’t be confirmed. The sonographers are saying this is normal as I could be earlier than what I think I am. I am not, I have very regular cycles and know when I ovulated. I was really expecting to see an embryo with a heartbeat. Has anyone got any stories related to early scans? Positive or negative welcomed. Thank you