Firstly, congratulations on the weight loss so far. Your ticker is just flying along. Secondly, congratulations on the forthcoming wedding. The way you are going you will be a size 8 by then!
If you concentrate on a steady 2lb a week loss, but only expect 1, you won't be disappointed. Don't put yourself under any pressure, just look forward to seeing them and remember, they will only see the girl they love and miss when they get off the plane; you could weigh 20 stones and be dressed in a sack, they wouldn't notice!