While some lucky people may notice dramatic results in the first 24 hours, this is pretty rare. Don't think that you are doing something wrong if you aren't losing pounds hand-over-fist right from the start.
Average weight loss during the 2 week induction period is about 10% of what you need to lose and then 5% each month after that.
Go easy on the cream (no more than 3 fluid ounces a day) and cheese (no more than 3-4 ounces a day).
Good for you on eating your veggies!