baby has small abdomen

Fall • Mama of two 💖💙
So I had a growth scan today at 34w2d. They said my baby has a smaller than normal abdomen, like she is too skinny in her belly. They are sending me to a high risk dr to double check but did anyone else have this problem and what was your outcome? They told me not to worry too much but it's kind of hard when it's your child we're talking about 🙁