Breech baby and "dropping"?

Hello all. I am 32 weeks pregnant and my baby just turned breech last week after being head down for 6 weeks or so. I have been given several different measurments based on several different factors and really have no clue when to expect this baby. I am afraid that it is getting time for him to "drop" and I am concerned that once he "drops" that he will be less likely to turn back to vertex position. Anyone have any experience with this? Thanks!