What happens if it spins round fast? X
They're not the best scans for using nub theory, as I'm not sure you can actually see the nub on there. On the top scan there's a line sticking out that MAY be the nub, but I think its part of the umbilical cord.
You can use Ramzi theory though. The umbilical cord has attached on the right side of your uterus, so I'm guessing boy.