Is it normal to lose your belly?

🌟CrysAnn🌟 • Princess born 10/4💖 pro-life, every life should be celebrated.
Two days ago my belly got all weird feeling, ( hard on top, soft on bottom). The baby is still in my ribs. But now today my tummy looks like it's half the size it was yesterday. I am 39+3, should I be concerned?