Similar story to the rest of these ladies. Was 17 stone this time last year, started cambridge and had lost 4.5 stone by Christmas. Had a break over Christmas and January...put on half a stone. Started cd half heartedly and started trying for a baby in Feb. Somewhere between my Feb and March period I fell pregnant. Had been feeling a little unwell for a few days (but preg test said negative), billous in the morning and evenings, was diagnosed with gall stones, then a week later found out I was pregnant! not had any feelings of sickness since so I think the gall stones was actually just a bit of morning sickness.
I don't know if I was fertile before at 17 stone, but I didn't want to risk it. Have never tried to have kids b4 so am chuffed that we managed to conceive just with a couple of weeks trying =)
I am sure being lighter helped. My mum was very over weight all her life andhad multiple miscarriages, 3 b4 my sister and 4 between my sister and I. I came out at 32 weeks. I didn't want to go through any of that. So started trying at 13 stone and a size 14. Good luck to you, just keep in mind that you could fall pregnant whilst dieting, look for the signs and keep up with the folic acid