Upside down scan nub shot

[Goodus]

Will the nub shot be accurate if baby is on it's tummy? If I turn the picture around it looks like there is a nub sticking up.

[nuthinbutpink]

It can be.

[Goodus]

Thanks nuthin! The nub on the back looks kinda straight but the nub on the tummy view looks like it's sticking up! :s

[nuthinbutpink]

There's no gravity in the womb so I never understood the invalid nub thing. The nub is solid so right side up or upside down it should show the same thing.