This might sound like a silly question but I don't want to damage myself or the baby.
I'm 25 weeks pregnant and get a lot of lower backache after walking for a little while so I decided to buy a support belt. I got one on ebay but it doesn't have a box or any instructions with it.
It's just a long piece of wide elastic with velcro in a few places. Where am I suppsed to position it and how tight should it be?