HELP!Positions to rotate posterior baby

Rose • Mommy to Isabella Rose 🌹
So I'll be 38 weeks in 2 days and I have an appointment today( Wednesday ) , I'm kinda worried cause my doctor promised he was going to sweep my membranes today but I've had my baby in posterior position for the longest and she hasn't moved to an anterior position . I was reading and I came across very disturbing things like vacuum and forceps and if baby don't rotate they could end up doing a  c-section and what not.. 
Any of you guys went through this ? What did y'all do to rotate the baby?
If it didn't happen what was the outcome of the posterior position while in labor?!

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