Thanks so much for you response. I went to get a second opinion and she said the exact same thing you said. She actually said its better to do immediate because after radiation the skin does not stretch. So that is what I am gonna do.
The decision whether to have immediate or delayed reconstruction would depend primarily on your preference. Immediate reconstruction carries the risk of expander problems in a minority of cases (about less than 5% - 10%of patients), while the rest are OK. Radiated expander problems would include hardening, limitation of expansion, and stiffening of the surrounding tissues. This can have an effect in the final appearance and size of the breast. If this 5-10% risk is too high for you, then you can opt for delayed reconstruction.
You can also ask your doctors regarding the actual percentage risks, as these figures are only my estimate.