Possible failed pregnancy/no heartbeat

[Pregnantandvworried]

I had a re scan yesterday at 8 weeks and 1 at the EPU , 16 days after my initial scan where they could only see Gestational Sac.
In the meantime I had 2 private scans which also didn't show more than GS (although I am sure I saw shadow of something ).

They couldn't see much on abdominal scan so they've done an internal scan.
They have found a fetal pole measuring 4mm without a heartbeat and I was asked to come back in a week again to see what happens.
After the scan the nurse told me that it s most likely failed pregnancy and possibly I will misscary within one week.

I am very confused.

I am looking at the ultrasound pictures and all scenarios are going through my head.
I am definietly 8 weeks not behid as I know when we dtd. I had positive pregnancy test on day 27.

I read absolutely everything about early scans and I know big yolk sac is indicative of pregancy failure or chromosomal abnormalities.
I had CT scan day before I found out I am pregnant so I am thinking that maybe this had an effect on how the pregnancy is progressing .

I have attached picture of the scan. Does the Yolk sac look big ? They didn't tell me the size but say the fetal pole is 4mm. To me the YS looks much bigger than FP.
What do people think?Does it look big?

With respect; I know you're desperate to find reason for hope, but you won't find it this way. You can't find something in a still ultrasound image that the trained people looking at a moving scan didn't see.

The bottom line is that if you are definitely at 8 weeks, a heartbeat should be clearly visible, and so it does very much sound as though this pregnancy is not progressing. I'm sorry. The CT scan will not have had anything to do with it though. Unfortunately early pregnancies fail all the time, in the vast majority of cases because the embryo was never genetically viable. It is just bad luck.