I'm posting a link for reference. If you notice at 8:07 in the video, the baby's head is on the left side and then at 8:30 it's on the right. This is exactly what happened at my 12 week scan. I'm looking at the monitor, I see the baby's head on the left and then as soon as the sonographer moved the probe, the baby's head appears on the opposite side which made me wonder if there's another baby. I dont know I could be wrong. I asked the sonographer and she said there's only one. Can anyone explain this to me?