Ditto to what Rory said - I had a vaginal delivery, no drugs, no forceps etc - and I was TOTALLY elated and felt physically, mentally and emotionally on a high for days afterwards... but especially for that day! We lay in the delivery suite for an hour or so til I fed Noah, had some tea and biscuits while they weighed him etc and then I had a shower, put on a nightie and walked out of the delivery suite into my room (pushing Noah in his crib). The midwives were shocked that I just walked out of there and didnt want a wheelchair etc, but for me I felt so great that I thought I was fine to walk/push Noah!! I agree with rory that I felt the world had changed, I had a baby now and also I had an overwhleming feeling of pride - thinking to myself 'wow I have done childbirth'.
Try to capture all the positive feelings, there is such an overwhelming rush of emotions and it is the most special feeling you can ever have. I never realised how amazing it would feel til I went through it, and now I would love to do it all again...
My DH felt similar. What a day!