Joan,
I have been on Finasteride and Estradiol for less than a year. I was, also, grossly overweight. I was 340 pounds and now, one year later, I am 267 pounds. As I lost the weight, my waist went down, the chest went down, but the breasts and the hips increased. I now measure 47-40-47. My under breast chest is 41 inches. I am 6 feet tall and shrinking. I used to be 6'1.5".
Finasteride and weight loss helped me more than anything else. Hips are basically muscle and fat. Depending on your age, you should not expect much change in your pelvic bone. The only way to get any curves at all is to build the gluteal muscle and eat a proper amount of good fat.