sad deflated birthing ball

This was from last Saturday's birthing class. We were told to purchase and bring a yoga/birthing ball for practice. I didn't get around to inflating it 'til the morning of, and filled it until it was filled out to a round shape, but had no idea you were supposed to actually fill it until it stretches like a balloon. As you know, I don't like balloons, so it makes sense that it didn't occur to me to fully inflate my ball.

But when Dav and I arrived at class and saw that everyone's ball was gigantic, I was so embarrassed to have this teeny tiny thing. You can see from the picture that my purple ball upfront appears the same size as the much larger one way on the other side of the room. I didn't even bother to use it for practice...

Now, it's the perfect size and I sit on it at home :) It's supposed to help my pelvic bone move around --> Gargle, get into position!