As well as stimulating the brain, nicotine also acts as a stimulant on the digestive system. Most smokers find that they go to the toilet very regularly and do not usually suffer from constipation. This is because nicotine has a laxative effect.
When you give up smoking you may find that you are not as regular as before and may even suffer from bouts of constipation.
Your body is likely to adjust to working properly and at a normal level without nicotine after a few weeks.
I would suggest that you increase your fibre intake. This should gently encourage your bowel to work normally again. It may take time (days-weeks) however, be patient. Also taking the 'good' bacteria in yoghurt may be helpful. Drinks like Yakult, the rest aren't very good as they don't reach the large bowel, the other one that is good is Multibionta multi vits and drink water.
Some say that eating chocolate helps too! I personally like that idea.
