How Long Will It Take Me To Loose 100 Pounds?

You see, I'm on the Atkins diet and have been for just 6 days and I've lost 6 pounds. But I've lost around a pound per day because I only eat 1 (maybe 2) meals a day and I walk and exercise a lot. Since I'm loosing so fast is it possible it won't take as long for me to loose 100 pounds compared to some people? And how long do you think it may take seeing the weight that I've lost so far?