I’m 8 weeks preggo now. I had my first ultrasound at 6 weeks and 3 days. I had so many dreams of twins and saw twins EVERYwhere. But I went to my ultrasound and there was only 1 heartbeat and she said there was just one in there. My close friend told me she was pregnant and later found it was twins! I knew my twin dreams weren’t coming from just anywhere. I am happy with my 1 baby! But I was looking at the ultrasound video and some pictures from my first (and only) ultrasound and I found something strange. There are 2 white lines in the sac. Both on the bottom right. The doctor marked the 1 baby with a “CRL” on top of it, however, I just noticed a white line above the baby. Thoughts?