35 weeks and 5 days along, my weight?

i am considered a high risk pregnancy and have morbid obesity. i have lost a total of 14 pounds since my first visit to the doctor which was on august 27th of 2008. they don't seem to be to worried about it and have not said anything to me about it. is this a bad thing since i was already over weight? has someone else experienced this and everything was fine? how would i go about asking the doctor about this my next appointment? baby is still moving and everything and all ultrasounds have come back normal and everything.