I asked this a couple of months ago, and I still dont know the answer.
My original target was 9 10 (starting weight 12 5), as that was my weight before I was pregnant with DS2 (Dc3), and after DD when I got there I thought Id go for 9 5 my weight before I had DD(DC1). At 9 5 I thought, well thighs still chaffing and they look a bit fat and weight still coming off easily, perhaps 9 0 is better. Now Im 8 11 (BMI is 21), and 8 10 is my floor my weight whilst at uni.
I am quite toned and muscular though as am training for a triathlon, body fat now down to around 22% per tanita scales, but still have wobbly bum, and my face doesnt look gaunt. Arms have definition, thighs more muscle than wobble, although still some wobble, stomach flat and can see definition.
Wearing size 10, which is fine but in some shops esp M&S size 10 now too big. DH thinks I look great, but that ultimately its up to me what I want to weigh. My dad is GP and he thinks ok as long as I dont let BMI go under 20 which I will not. People commenting that I look great. For the first time in my adult life I like the way my body looks.
I've never felt happy and secure in my body, do people ever, really? All I know, having lived at either extreme, is that actual fat is an easier foe than imaginary, so at least have never harboured illusions about 'happiness = anything under 8 stone/size 8'!
Maybe will just see where it levels out, am active and eat well (I think) but don't have any sort of historical point where I felt 'right'. Plus am older and probably couldn't get away with being at v low weight now? Really was just wondering how far you take the 'don't lose any more' comments into consideration. It's such a difficult thing to be objective out isn't it?
The thing is forever I bet if you put weight on and looked back at pics of yourself now you would think wow I looked amazing, there wasn't an ounce of fat on me! This happened to me when I lost weight a few years ago and at 9st 9 I was happy but still felt I needed to lose more. Now I have put the weight on and realise I looked so so good and didn't need to lose more.
From what you say you are at the perfect weight and fitness now - if I were you I would maintain it.