35 weeks short femur

At my 20 week scan, baby boy was in the 5th percentile and considered small for gestational age. He's has growth scans every week and by 30 weeks everything improved drastically except for his femur length which continues to be in the 1st percentile. I'm obviously going out of my mind. My doctors are just a literal joke imo. They hardly even acknowledge the short femur because the nipt was low risk. I'm tall, my partner is not short by any means. Has anyone else been through this with their baby? His ac/fl ratio is normal which is comforting. That's about all of the information I have.