Dont ask for scare stories, you crazy lady! 
two best friends had their third babies this year, as it goes.
Friend 1 - ghastly, long, forceps delivery first birth with huge episitomy; relatively short and 'easy' labour with number 2 (no drugs needed, no tearing/cut etc); third birth was a 'sneeze' birth and she was home 6 hours later all blissed out.
Friend 2 - super quick first birth with no drugs, no trauma and pain like 'bad period pains' (I was very jealous, as had a four day labour and emergency section around the same time); second birth was longer and more painful, but straightforward; third birth was difficult, ended up in forceps delivery and she says 'never again'.
So...the jury is out! Now stop trying to scare yourself and congrats on becoming a third time mum bery soon