It normal to feel frightened of giving birth especially if you have never done it before. Labour is very difficult to explain, it begins as period like pain in you lower tummy and lower back and gradually increases along with the tightnings in your tummy. As the pain gets stronger the pain kind of takes over the whole of you tummy and back area. You do get a break inbetween contractions where the pain completely goes away and you can relax and get your breathe. As you progress to fully dilated the pain comes one on top of the other. I wont lie to you, it is the most painful thing you will ever experience. Staying in control of your breathing is important. If you opt for an epidural, you wont have to worry about the pain anyway lol.
You can only have an epidural after you are in 'established labour' and that is when you are 3+ cm's dilated, but they rarely give you one if you are over 6-7 cm's dilated, so timing is important if you want one. xx