14th Percentile

At my anatomy scan baby was in the 28th percentile, which my doctor said was fine. I had a follow up anatomy scan at 24 weeks for a CPC and baby was measuring in the 14th percentile, my doctor said nothing about it. Since then I have switched OB’s and my new doctor wants me to have a growth scan because she’s worried about baby’s size. I was also measuring 2 weeks behind for my fundal height. Has anyone had this happen and baby ends up being fine? The way my doctor told me about it just has me so worried..