Two weeks ago had a 3rd trimester screening, the baby was in head-down…

Two weeks ago had a 3rd trimester screening, the baby was in head-down position and there was polyhydramnios. I took the cervix preparation and today did an additional ultrasound. The amount of amniotic fluid normalized now the baby is in the pelvic position. The size of the fetus is bigger than two weeks ahead (they said large fetus). So will the baby turn over before birth? What should I do for this? I'm worried. Maybe someone has experienced this?