support band

i’m 17+5 and I have started to wear a support band to work because I work in retail so i’m on my feet all day long for 7-8 hours. I put it underneath my belly and it covers the bottom part of my belly as well. when I took it off after my shift ended my belly was flat at the bottom and belly at the top like baby had shifted up there from the band 🥴 is that possible? idk if i’m hurting the baby i’m terrified to even wear it now but it somewhat helps with my back.. I normally put the band on then wear some light sports briefs over it to support so it doesn’t slide then I put my pants on top of that to feel secure but it doesn’t feel tight.. should I do this another way?