Question about birthing ball

[claire1978]

I have asked this in 3rd tri but thought I might get more answers here?

I have a ball in the loft, its a gym ball used for exercise but Im assuming its the same thing as a birthing ball, anyway Im gonna get hubby to get it out of the loft later but my question is, by bouncing on it does it help to get the baby to engage or just to help the dilation progress?? Sorry if its a daft question

 

[Jkelmum]

In my last pregnancy i bought a gym ball instead of a birthing ball as it was loads cheaper and worked the same x