Belly support brace question

If you got a belly support band during your pregnancy, how far along were you when you got it and did you think it was worth it?

I am currently 12 weeks and for the past 3 weeks I’ve had increasing lower back and hip pain. I do have a history of back injury (I herniated a disk and pinched a nerve in my spin in the same accident January 2017). I am working on slowly building up on pregnancy safe back strengthening and stretching exercises, but I am worried as I get bigger the pain will get worse.