The only thing I could think of to rhyme with 'six' for a catchy thread title was 'ketostix'. But as I don't advocate those, I was stuck!
By now, hopefully you're in the sway of things. Weight loss each week may be less spectacular, but should be reasonably consistent if you stick to the knitting 
You may also be finding that it's not happening for you consistently. It is an odd thing - and I have no idea if it's unique to low carbing - but it's not uncommon to go for a couple of weeks without losing, and then for the scales to suddenly drop. However, don't be downhearted and whatever you do, don't use this as an excuse to drop off the wagon!
It's also a very good reason why you should take your measurements as well as weighing, and a very good idea to keep a food/drink/snack diary, so make sure that you're not allowing carb creep.
So. Keep on keeping on. Remember the water, and don't forget to make sure you're keeping the fat levels up.
Here's to next week!