Hi All,
MrsKC, you look lovely firstly. I think if the doctor's advice is to loose some weight then its worth a shot. I cannot say for certain this is the case but I got my

a month after I started exercising consistently again.
While TTC I was living in 2 week cycles, the first half I wouldn't exercise cos I had very painful and long periods, and then the second half I would be too scared to overdo it and knock the spermies off course so would maybe only go once or twice in the whole month. I finally got to a point where I decided to stop letting TTC rule my life and carry on as normal so started running 4 mornings a week and taking swimming lessons.
So as PurpleKisses said it can't hurt non and could possibly help some.
Hope Ive been helpful