Any one know of a good cheap breast pump?

I’m using the mipump (first years) it was $44 and it’s the electric single pump – it really hurts my breasts – but does work on one boob which is weird the other one doesn’t seem to like it at all.
So I’m wanting to buy another one – does anyone have any thoughts of a good semi cheap pump – electric or manual whatever is better?

Thanks!

I’m using it to increase milk supply and store it so my partner can feed her once in a while