Posterior labours can be avoided by not having a posterior baby. LOL. Things like slouching and not sitting up straight can cause bub to become posterior. So make sure you always have a nice straight back and sit upright.

I had a posterior baby with my second son. If only I knew then what I knew now. Still, if it was meant to be longer or harder it sure wasn't. I only laboured for around 2 hours. Actively for 1 hour. He was born posterior, I had no stitches, not even a graze. I aso had no drugs as he was a born in a birth centre. I used the shower for pain relief and found it a great help. The same goes for back massage.

The best thing though is prevention. You still have a while to go yet but I wish you luck