This is my 6 week ultrasound, I measured 5 weeks 6 days, heart rate of 127. The tech had trouble getting an accurate heartbeat and said the baby was on one of my arteries(?) I noticed when comparing my ultrasound picture to others around 6 weeks that the yolk sac looks almost solid.

I found out at 9dpo, or 3 weeks 2 days and my hcg levels at 4 weeks 3 days was 2300.

Just wondering if it's possible they missed a twin or something wrong with the yolk sac?