Back to back baby

Any girls on here with back to back babys and get a very horrible pain at the bottom of there backs when they sit down, its hard to explain you will only know how horrible it is if you have it..😥 im 38weeks tomorrow, also had strech and sweep yestaday had contrations but they have worn of today but still loosing loads of mucus with bright red and brown blood hoping he comes very soon.This pain iv had for last few weeks since he went back to back now anyone elsee😩😩