As all the previous posters have said, you definitely don't need to decide on your pain relief now, but it is good to have an understanding of what is available before you go into labour. For next time I'm going to have a birthplan of what I'd ideally like to happen.
If you do decide to have an epidural make sure the midwife checks to see how far dilated you are before you have one! I went in to be induced at 41 weeks and the midwives thought I'd be there for hours so were telling me that the contractions I was feeling was just the begining (they hadn't checked me at all till after I'd had the epidural) so I decided to have the epidural, and when they checked the cervix moments after the epidural I was fully dilated already, so they turned the epidural right back so I could feel the contractions and when to push, but there was no pain and I didn't need any further intervention and only had a couple of stitches - I was a bit disappointed about having it considering I'd come so far without it, but the end result is worth it!