Are belly bands worth buying?

Im almost 35 weeks pregnant and the pelvic pain has gotten to me. I have trouble getting up out of bed, walking (to the point where i actually walk slower), and can barely get any housework or preparations done for baby bcuz of the pressure and pain. I had a doctors appt today and my doc recommended to get a belly band, she noted that its not only good during the last couple weeks of pregnancy, but also after baby is born to help with stomach muscles.

On the flip side, Ive read a lot about how its very uncomfortable (slips up a lot), didnt actually help, or that it wasnt worth it.

What do you ladies think? Any advice/experience would be great. Thank you in advance :)