The left side is preferable since your blood circulation and blood flow to your body are more efficient in this position. Baby may crowd your stomach and make it more difficult to eat. Try eating six smaller meals. The top of your uterus lies just below your rib cage. Rapid brain growth continues.
Fetus is too big to move around much but can kick strongly and roll around.
You may notice the shape or an elbow or heel through your abdomen. Bones of the head are soft and flexible to make it easier for the baby to fit through the birth canal. Lungs may still be immature. If born around 37 weeks, fetus is premature but has an excellent chance for survival. You may feel your baby's hiccups, which feel like rapid, regular, jerky movements.