Eyup wishful I'm sure the more knowledgeable ones will be along shortly, but in the meantime I can give you my personal experience, which is of an epic stall until week 6, and I was complaining on here about it. Now it seems to be flying off me. I am, I reckon, now 'in the zone'. I don't get hungry and my portions are small (still lots of veg, fat and some protein 3 times a day).
It might be different for you; I don't know your starting point. I'm relatively tall at 5ft 9 and was at a BMI of 24 when I began, and it's been said here and elsewhere that when it's the last stone/10lb it's more stubborn, so if you've a different vector it may well pick up sharpish for you in week 4/5. Although I think I was kidding myself there and it's the last 2 stone for me really! My body was well pleased to be where it was thank you very much, and has taken a bit longer to get with it. But it has now, for sure.
Consider your water intake, and consider carb creep. Post a typical day's meals, and the wise ones will comment I'm sure. Keep on keeping on, it surely does work in the end!