Newbie trying to lose weight for my wedding :) :)

Hi everyone I'm getting married in May 2012 and I have dress shopping in October!!!! I'm so excited but sooooo nervous at the same time because I want to lose enough weight!!! I started being sort of good around June and lost 5lbs but then I've become more focused in the last 2 weeks using MFP and have lost another 5lbs I realise I may not be down my GW before the wedding but I would like to have lost another 7lbs before October and then a further 28lbs before my wedding....after this I hope to continue down to my gw of 158lbs!!! Wish me luck if anybody wants to add me if they are looking to do it for the same reason feel free to add me!! X