IUGR?

Amarillys/22🧚🏻‍♀️

I’m a tiny person I’m 5’2 and was underweight before pregnancy at 94 and I weigh 115 now I’m 35+5 right now and I just went to my appointment and I had to see a high risk OB for ultrasounds and my baby is still measuring tiny and her weight is 4 pounds and 11 ounces and is under 10th percentile. He’s not sure if it’s because I’m tiny or IUGR. But still diagnosed me with it the placenta was fine the blood flow was fine as well. My uterus is still super tiny it’s still only above my belly button. My baby is head down. They want me to deliver at 38 weeks or 39 weeks I go weekly now. I really hope she’s just a small baby and nothing is wrong with her. She is always active 24/7. Is there any recommendations I can do to up her weight and mine as well? I need all the tips I can get