I had my dating scan today. My pregnancy was an assisted pregnancy so I know the insemination date and I should be 8 weeks 4 days. They did both external and internal ultrasound and could not detect a heart beat. The sonographer said that her dating tests put the pregnancy at just over 6 weeks rather than 8 weeks and that at 8 weeks she would have expected to see cardiac activity. I have had no bleeding. She took the results to the radiographer who told me that there is a gestational sac, yolk sac and foetal pole and that all other milestones of pregnancy look good so she wants to give it another 7-10 days to see how it goes and to come back for another scan next week. I want to have hope but with my only other pregnancy I could clearly see cardiac activity at 7 weeks on ultrasound. I am coping ok but not sure if I will cope well if I am in limbo for another week or so and then find out it is not a viable pregnancy. Has anyone had similar experience?