I think you can expect to lose 1 stone a month but some lose more, and usually a more like 1 1/2 stone in the first month from what I've read online. Someone who's been on it longer than me can probably answer you better though hun xx
yes a stone a month is average but you've already lost that in your first week! you'll prob find that the losses wont be as big as that one from now on but you will still have good losses if you stick to the diet. By august you may have possibly lost 3 more stone on average, maybe more maybe less but roughly a stone a month is the average loss for people on CD.