I found this interesting link:
www.msichicago.org/whats-here/exhibits/you/the-exhibit/your-beginning/make-room-for-baby/interactive/
It shows the movement of other organs whilst your uterus is expanding, throughout pregnancy. I was wondering about my bladder and my stomach, and it certainly shows why I am going to the look more often and why I feel a bit acidy if I eat a big meal.
Just thought others might find it interesting too 