Membrane sweep at 37 weeks for VBAC

I discussed having a vaginal birth this time around with my doctor. My first was delivered by planned c section because she was breech. My doctor said at 37 weeks she would start a membrane sweep to "get the ball rolling" (my words not hers lol). Has anyone else had this done so early, I've only heard of them being done after 40 weeks. The plan is to naturally induce labour so I don't go past my due date or far past so my chances of having a natural birth are better. Does this mean I will have my baby before my due date? I'm not due until February, so I have lots of time to figure it out, I was just curious.