Aija....the weight you have just lost is mostly water weight and this rate of loss will not continue, so you probably don't need to worry about "losing too fast". A normal rate of loss, at the high end, is 1-2 pounds a week. Many lose much slower than that. I average about 1/2 lb. per week...and now I'm in a 7 week stall.

Also, you should be aware that there is commonly a mini-stall at week 3-4 where you may not lose any weight at all during that time. It's nothing to be alarmed about and you should just stick to the plan, keep on LCing and things will start moving again.

Good luck!