Girls, hello! I'm currently in my 38th week of pregnancy. My belly so…

Girls, hello! I'm currently in my 38th week of pregnancy. My belly sometimes bends so much that it feels like the baby is doing it. Is this normal? The baby's position is correct, but sometimes I feel like there's something wrong because of these bumps. It's as if the head is under the ribs, although doctors say the head is from below. I can't get an ultrasound done.