DD was back to back, but nobody realised.
Labour was not too long. Contractions started at about 6pm. I phoned the hospital at 9pm asking to come in. They said as it was my first baby, should wait longer.
Was in a lot of pain in my back (didn't realise but this was a sign DD was back to back).
Phoned hospital at 10pm because I thought I couldn't stand the pain any longer asking if I could come in. They said to wait, was too early :(
Somehow got through another hour and a half of me screaming through every contraction and poor DH despairingly rubbing my back with all his strength.
Phoned hospital and begged to come in, they relented and said I could.
Got to hospital at about midnight, was examined and was actually 8 cm dilated. V relieved. Midwife wanted to do an internal exam but was in so much pain I couldn't let her. So fact DD was back to back was undetected.
Lay down on bed, got gas and air, felt a bit better, got urge to push very quickly.
Midwife remarked that we were lucky baby was not born in the car on the way...
Over one hour of horrendous, fruitless pushing later, no sign of DD, midwife getting concerned, had called head midwife, and taken gas and air off me as it was "distracting me", lots of Drs in the room brandishing forceps and ventouse, telling me I needed to push harder (at that point was lying on my back with legs in stirrups) and pushing with all my might.
Eventually, somehow managed to push DD out without assistance. Honestly it was the most strenuous thing I have ever done, I thought my lungs would rupture from pushing so hard.
When she appeared, everyone said "Ooohhh, back to back, that's why you were having trouble".
DD was quite small, I think that is the only reason I managed to get her out without intervention.
So in my case, progressed v quickly at first, contractions were certainly painful but I did manage to cope with it, it was just at the pushing stage things went wrong. If I had known DD was back to back I would not have laboured flat on my back, I don't think that helped.
Hope things go well for you :)