Bouncy ball after csection

I was told to not do much physically 5-6 weeks after my urgent csection. But I find that my baby calmes down while bouncing on excersise ball with me. Yesterday I realised my stomack hurts a bit after a long soothing session on a ball (well I don't bounce like a lot, just a little to calm baby). Does anyone know if it is ok to bounce on a ball after csection?

(yes, I plan on asking doctor also, but it is weekend, I can't today and I would like to know some insight)