Fell from the yoga ball

Tasmina • Can't wait to meet my baby boy in April 😍
I was bouncing on the yoga ball & I didn't realize, I got up & when I sat back the ball wasn't behind me. So I fell on my butt pretty hard. It was hard floor.by the way I'm almost 40 weeks. Do I need to call the dr about this. I feel so silly for falling like this.