Congratulations on your wedding!   This is a little close to the time to see much with Thermage and it's tough to know without a picture if you have a good facial structure for it.   I would almost vote for a little more extensive Juvederm treatment which would give you a more immediate predictable lift.  Possibly 1 syringe in each cheek to lift and help with sagging and a syringe or two  around the mouth and in the lips. Usually I don't recommend this because it will only last 6 months or so but in your situation it might be just the thing.  Maybe just a litte Botox in your frown lines (if you have them) or crow's feet also.  

Please, please find someone very experienced to do this and start 3-4 weeks (now) before the wedding so there's time to adjust if it needs  adjusting without risking a bruise right before the wedding.  You want at least 10 prior with no injections done.   

Please see my Regional Guide to Excellent Cosmetic Dermatologists to find someone in your area.  Hope this helps!  Dr. I