Weight gain or lack there of...

I started out pre pregnancy at 232lbs and am currently 230 at 30+5 weeks. I was really sick in the beginning and lost 25 lbs. Expected weight gain for a plus size woman is 10-15 lbs which my doctor still expects me to gain. I'm wondering since I haven't gained the extra weight so far during pregnancy if it's harming my baby? Any advice or similar stories? FTM here so please no bashing.