clothes dilemma

 So here's my dilemma and seeking feedback. I'm going to be in my friends' wedding in September but will get my bypass surgery sometime this spring. Have a (final?) pre-op appointment with Dr. Long on the 24th to set my date!! Done with hurdles, lost 20 pre-op pounds, whew! But getting back to the point.... My friends have picked out their gowns/etc and have decided on the bridesmaid/attendant dresses. I have NO idea what size to order! How to predict what size you'll be 8 months from now when you don't have a precise date nor an estimate of how much weight I'll lose? Right now I'm a size 22/24 at 245lbs. I figured it may be safe to order a size 16, as it's easier to size down in alterations than let something out. So those who've had RNY or VSG, what do you guys suggest?

You are in a pickle and there is no way to get around this one.  You may consider holding off until the very last moment prior to placing your order. 

I had my surgery 8/17/2010 and was a size 22 266lbs and am now a size 8 164lbs.  So maybe you should go smaller.

 Congrats on the weight loss & thanks so much for your input!  

omg I'm the same weight and still about a 12/14.