I'm trying to find a maternity support belt to help with pains from my growing bump - does anyone have recommendations for a good one that fits a size 18/20 comfortably? All the ones I find are either too small, or if they advertise as plus size they look like cheap copies of more expensive belts with mixed reviews (lots of these on Amazon). I'd like one that sits below the bump rather than the ones that have a band over the top too.