In 1988 when I got married (at 19) my wedding dress was a size 5 and my jeans were a size 7 - I think I weighed around 125 - which was a good weight for me.
Now I wear jeans size 16-18W and tops need to be XXL because I don't want anything hugging my now tree-trunk like middle.
I think the longest I was in one size, I was 25-35 and I wore a jeans size 12 and I was perfectly fine with myself at that weight because I looked healthy, felt healthy and life was good. My goal now will put me around a size 8-10 in pants... that may change later on, but for now, I'm going for it.