Mamsh, I understand you're worried, that's totally normal! But please make sure to discuss this finding directly with your OB at your next appointment or sooner if they want to see you, kasi they know your baby's case best and can explain what it means for you specifically.
Try not to stress too much in the meantime, you're doing great by staying on top of your prenatal care, and your doctor will guide you on what to do next. Wishing you and baby all the best!