Ay, I understand your worry, mama, that's a tough thing to see on an ultrasound report at 27 weeks! Honestly, I'd really encourage you to have a sit-down talk with your OB about what Low risk A1 means for your baby specifically, kasi ang reassurance talaga ay darating from them na makakita ng actual scan at makaka-explain ng details. A few of my mum friends went through similar scares with ultrasound findings, and palaging the doctor's explanation made such a big difference sa peace of mind nila, so please don't hesitate to ask questions, even the ones na parang basic, kasi ito ang baby mo at you deserve clear answers. Sending you a tight hug, and I'm sure your OB will give you more clarity soon!