Yesterday I had my dating scan only to find an empty sac, there was no baby at all... It was quite a shock as I've been having pregnancy symptoms thus far. Apparently this is called a blighted ovum or an anembryonic pregnancy and it happens when a fertilised egg never develops into an embryo but the body carries on with the pregnancy. I'm approximately 13 weeks but I haven't had any bleeding or passing of tissue yet. I tried to contact the midwives all morning to no use, it just seems impossible to get someone on the phone to speak to... Am I likely to miscarry and bleed naturally? Did anyone had a blighted ovum for this long before bleeding?