increasing cup size

I was diagnosed with breast cancer in my right breast on Nov 26, 2014. I was given the option by my general surgeon to either have lumpectomy with radiation or a mastectomy with no radiation. I had a mastectomy on my right breast on Dec 8, 2014. At the time I was consulting with my general surgeon to schedule the surgery, I asked him about reconstruction. I didn't know anything about it except that it was a possibility. He said he recommended it be delayed for a reason that I can't remember because I was such a basket case at the time. I think it was because I may have to have chemo, which I will find out about next week. He told me he would set me up with a plastic surgeon once we knew where we were. Because my cancer was invasive, my nipple was removed and I assume the operation was not skin-sparing. I am an A/B cup depending on the bra. I have never been unhappy with my breast size because it was nothing that an add- a- cup bra could not enhance. Now that I have this "opportunity", I would really like to increase my breast size up a couple of sizes to a C/D cup. Given the fact that my surgery required the reconstruction be delayed, is increasing 2 cup sizes even possible? During my recovery I have educated myself on all the different reconstruction techniques. If my plastic surgeon does tissue expanders and implants, will my skin stretch enough for a 2 cup size increase? I know every person is unique, but just in general will what is left of skin after a non skin-sparing mastectomy stretch enough for that? Honestly, the reconstruction techniques involving tissue flaps from other parts of the body scare me to death. Thanks.