I imagined labour to be the worst thing imaginable. I thought the pain would be unbearable and I wouldn't be able to cope. However, it was actually fine. It's only one day, the pain isn't constant as you have time to recover between contractions. It's quite exciting too as the pregnancy will soon be over (hooray) and you'll meet your little baby.
In fact I have fond memories of my first labour and now pregnant with my second - I haven't any concerns at all about doing it again. Also - if you feel that the pain is too much - there are plenty of analgesic options - epidurals are common and provide fab pain relief. I had gas and air and pethadine and both were marvellous.
I would try and hold out as long as possible before having different types of pain relief - use a TENS machine at home, gas and air works almost immediately and pethadine takes only 10 mins. Epidurals take about 20mins.
I would go into labour with the attitute that yes it's going to hurt - but it's not for long - it'll be all gone by the next day. Try and relax during it - try and doze between contractions. The pain doesn't mean that there is anything going wrong with your body - it really is a normal process.
Evolutionary- Nature needs to give you warning that you are about to give birth - you don't want to deliver outside in a field with dangerous animals around - nature wants you back in your cave where it's safe and warm and prepared for your baby. The pain makes you retract to somewhere safe. Also it's thought that we have pain in labour which completely stops when baby is born so that it helps with the bonding.
I am a complete wimp normally - my husband calls me a 'sickly child'!!!!! But honestly it was fine - it's just that everyone likes tellling a horror story!