Just diagnosed with stage 2 or more endometriel cancer?

Im 37 with two children, and have had bleeding problems for several years, finally Keiser gave me a biopsy and called me today to tell me I have cancer and must have a full Hysterectomy right away! My head is still spinning, even though its like I knew it deep down that it was going to be bad even before I saw the Dr. I see the head of O.B. on thursday, so I will have a long couple of days until I know when my surgery is and if I will have to have radiation and chemo, she said the cells look to be pretty early stages, but I have a LOT of pain especially after the biopsy, and I have been to the Dr, several times in the last year with swollen lymph nodes in the back of my head and neck, they never figured that out either and chalked it up to a possible virus and gave me antibiotics. My last pap before this weeks was 3 years ago, Keiser has decided that they are not necissary every year unless youve already had problems, I even asked for one a year ago and was told,"no its not time" I dont have much family on my side, and a wonderful family on my husbands, we just lost his 25 year old sister to gastric cancer less than a year ago, and his cousin was just diagnosed with the same cancer stage 4 with no hope. They told me they wont know the exact extent of my cancer until they get in there and see it for sure. I was there when my sister in law died, it was unimmagenible that if there is a God that he would let such a wonderful young woman suffer so, and not just call her home to heaven swiftly. I can only explain it as she had to walk all the way through hell to get to heaven. My actual question is (for those who have been through it please) should I allow the O.B. Dr. to opperate on me, or should I ask for a cancer surgen? My husbands family is urging me to demand a cancer specialist, I know its a good idea, and in my sister in law and husbands cousins case, they would have been put through a lot less aggony if they just had started with the cancer surgeon.