Definitely talk to your doc, or a nutritionist. I started this pg 'overweight' and in my particular case, it is alright for me to try and 'maintain' my current weight for the first two trimesters and gain only a little in the last trimester. But not to loose it. I am eating the equivilent kj that a breastfeeding woman would need - Although I am not actually counting my kj, more just following a health eating plan and keeping full on fruit an vege. (although I will admit to downing quite a few paddlepops in the last few days ).