I myself personally wouldn't diet whilst pregnant no - I think if you were to tell your Community Midwife/Registrar/Consultant that you were on a diet when you find yourself pregnant, they would tell you to stop & to just eat healthily. It can also play havoc with your fertility if you found you were to loose to much wieght and too quickly!

Extreme weight loss from crash dieting can deplete your body's nutritional stores, which isn't a good way to start a pregnancy. And it's not a good idea to diet while pregnant because you may limit your baby's access to important nutrients.
But if you are hoping to shed a bit of weight, the time to do it is before you conceive. Begin by choosing low-fat, high-fibre foods. Make sure you combine a balanced diet with an exercise programme, and aim to lose 1-2lbs / 0.45-0.91Kg a week, which is a safe rate of weight loss. In other words, don't overdo it.
If you're underweight, get some meat on those bones! While skinny women can and do have healthy babies, studies have shown that underweight mothers tend to have low-birthweight babies.

just caught up on this thread.........
any news yet??

still no sign of period will test on thursday if still not started!