Babies move freely around the womb at this stage going in and out of the pelvis whether head up or down and it really has no bearing on when you will deliver. You should be fully aware of your plan of care, if you are unsure speak with your midwife and ask her to explain everything to you.
im 31 weeks and i found out at an antenatal visit the other day that the baby's head has "dropped". my obstetrition seemed a bit alarmed but didnt let me know what was going on! Will I go into labour early?