Where Do All My Organs Go?

So, I've noticed that I am beginning to look a little tummy chubby and I began to wonder...is this the beginning stages of being pregnant, has the impact of not being able to exercise much taken its course, or was I like this before and am just not remembering?  I asked my mom about it and she said, "I noticed that yesterday.  This is what happens!"  She went on to explain how the organs of my body move to make room for the baby.  And then I found this AMAZING video on website for the Chicago Museum of Science and Industry:

Make Room for Baby