Back Labor

***concerned FTM momma***
Hey mommas!
At my 36 week appointment last week OB told me that my baby girl is 7 lbs and 11 ounces, head down in position which is great but she's sunny side up. He says that because of my height 5'3" they will induce me at 39 weeks, granted not a big deal, but my major concern is what happens if she decides to be sunny side up and not flip how she's suppose to be 😩 ideally I would like a vaginal birth but OB mentioned to me that I can but they would most likely have to use a vacuum to get her out which FREAKING terrifies me! 
Have any of you mamas experience back labor? Had to use a vacuum to get baby out? Recovery time? Did baby have cone head? Did you have to have a c section instead?
Just concerned.