weight loss during entire pregnancy

I have pcos, endo and am overweight. Pre pregnancy I weighed 254. Conceived through fertility treatments since I wasn't ovulating on my own at all. I am now 235 at 29+1weeks. I have had no morning sickness through the entire pregnancy. I eat normally, and snack often. The doctor doesn't seem concerned at all, especially since I am measuring at 30 weeks fundal height. Has anyone else had a pregnancy experience like this? If so how much did you lose post partum?