I currently weigh 15 stone 10 and I'm 5ft 5. I am wanting to TTC but would like to get my BMI below 30 before I do it, which for me would be about 12stone 10. How long realistically (and also sensibly) should it take me to lose 3 stone? I am going to assume the the first stone might ome off very quickly as I was seriously over indulgng...