blighted ovum?????

Christina

I went for my 1st ultrasound at what I thought was 9 + 1 weeks. Ultrasound tech said she wasn't seeing a 9 week pregnancy. All she could see was the gestational sac and yolk sac. My Midwife explained I could have ovulated late or I could be experiencing a blighted ovum. I go back for a follow up us on Monday. I'm so scared, as I've had a miscarriage before. Th thought is heartbreaking. Has anyone here experienced this before? What were your symptoms? Did anyone have the baby show on a later scan? Thank you.