Membrane sweep

Madisen • Baby #1 (handsome baby boy, Kaiden) born 9lbs 6.3oz, 22.25in long, June 16th, 2015 at 4:49pm with the love of my life.💕
I really hope to get my membrane swept at 38 +6 this Wednesday and I was wondering if any of you ladies had it done around the same time, how effective it was and how long it took afterwards for you to go into labor afterwards if it worked for you.