This is probably the world's most stupid and needy pregnancy 'worry'. My husband and I really want a yellow baby and went for our 20 week scan two weeks ago. As soon as the sonographer put the thing on, and announced on that's the baby's bum was against screen.
Clearly you could see two butt cheeks and its two little thighs. It was very empty in the middle as its legs were open. I try to keep telling myself its penis could have been well tucked up, and the gap was just between the bum cheeks.
I know it makes no difference and we are having a healthy baby, but someone please tell me it could still be either? I just can't get that image out of my mind!