I'm 36 so I think it's a pretty average low risk result for my age.
A bump band is just a band of elasticated material that goes round your tummy area, mine sits over my tummy under my top but over the top of my jeans and my bum. I use mine to cover the gap where my jeans fly is open and to keep my trousers up andsupport my bump, it's pretty useful and much confirm than control pants as covers the whole bump. I got mine off amazon it comes in 4 sizes and can get in white, beige or black.