This is my scan from 12w4days and clearly looks like a boy nub. Much more forked than my other boys but the angle is definitely boy.
Attachment 25200
Now this is my scan of the same baby from 12w6days and I think the nub now looks girly. The nub is pointing down and the fork appears to have split?
Attachment 25201
Is this possible in two days? Do nubs change angles so dramatically?